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進階數學及科學/三角形 - 修訂歷史
2026-04-11T09:28:39Z
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丁禾：/* 中點定理和截線定理(丁禾) */
2016-09-25T12:57:27Z
<p><span dir="auto"><span class="autocomment">中點定理和截線定理(丁禾)</span></span></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="zh-Hant-TW">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年9月25日 (日) 12:57 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l120" >第120行：</td>
<td colspan="2" class="diff-lineno">第120行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*#∠1=∠2(對頂角)、∠3=∠4(內錯角)∴△NAM=NCP(ASS)</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*#∠1=∠2(對頂角)、∠3=∠4(內錯角)∴△NAM=NCP(ASS)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*#∴<span style='text-decoration:overline'>AN</span>=<span style='text-decoration:overline'>NC</span>(N為<span style='text-decoration:overline'>AC</span>之中點)</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*#∴<span style='text-decoration:overline'>AN</span>=<span style='text-decoration:overline'>NC</span>(N為<span style='text-decoration:overline'>AC</span>之中點)</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>#中點定理，欲求<span style='text-decoration:overline'>MN</span>=1/2<span style='text-decoration:overline'>BC</span>、<span style='text-decoration:overline'>MN</span> //<span style='text-decoration:overline'>BC</span></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>#中點定理，欲求<span style='text-decoration:overline'>MN</span>=1/2<span style='text-decoration:overline'>BC</span>、<span style='text-decoration:overline'>MN</span> //<span style='text-decoration:overline'>BC<ins class="diffchange diffchange-inline"></span>，<span style='text-decoration:overline'>AM</span>=<span style='text-decoration:overline'>MB</span>、<span style='text-decoration:overline'>AN</span>=<span style='text-decoration:overline'>NC</ins></span></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*證明：</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*證明：</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">#*#以C為端點畫<span style='text-decoration:overline'>AB</span>的平行線，與<span style='text-decoration:overline'>MN</span>的延伸交於P。</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">#*#∠1=∠2(對頂角)、∠3=∠4(內錯角)、<span style='text-decoration:overline'>AN</span>=<span style='text-decoration:overline'>NC</span>∴△NAM=NCP(ASS)</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">#*#△NAM=NCP(ASS)∴<span style='text-decoration:overline'>PC</span>=<span style='text-decoration:overline'>AM</span>∵<span style='text-decoration:overline'>AM</span>=<span style='text-decoration:overline'>MB</span>(已知)∴<span style='text-decoration:overline'>PC</span>=<span style='text-decoration:overline'>MB</span>∴MBPC是四邊形(對邊皆平行且相等)∴<span style='text-decoration:overline'>MP</span>=<span style='text-decoration:overline'>BC</span>且<span style='text-decoration:overline'>MP</span>//<span style='text-decoration:overline'>BC</span>又<span style='text-decoration:overline'>MN</span>=<span style='text-decoration:overline'>PN</span>、<span style='text-decoration:overline'>MP</span>=<span style='text-decoration:overline'>MN</span>+<span style='text-decoration:overline'>NP</span>=2<span style='text-decoration:overline'>MN</span>∴<span style='text-decoration:overline'>MN</span>=1/2<span style='text-decoration:overline'>BC</span></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td></tr>
</table>
丁禾
http://www.jendo.org/wiki1231/index.php?title=%E9%80%B2%E9%9A%8E%E6%95%B8%E5%AD%B8%E5%8F%8A%E7%A7%91%E5%AD%B8/%E4%B8%89%E8%A7%92%E5%BD%A2&diff=24097&oldid=prev
丁禾：/* 中點定理和截線定理(丁禾) */
2016-09-25T12:22:19Z
<p><span dir="auto"><span class="autocomment">中點定理和截線定理(丁禾)</span></span></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="zh-Hant-TW">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年9月25日 (日) 12:22 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l112" >第112行：</td>
<td colspan="2" class="diff-lineno">第112行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===中點定理和截線定理(丁禾)===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===中點定理和截線定理(丁禾)===</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:Mid-<del class="diffchange diffchange-inline">segment of a triangle</del>.svg|225px]]</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:Mid-<ins class="diffchange diffchange-inline">point_theorem_and_intercept_theorem</ins>.svg|225px]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#截線定理，欲求N為<span style='text-decoration:overline'>AC</span>之中點，已知<span style='text-decoration:overline'>AM</span>=<span style='text-decoration:overline'>MB</span>、<span style='text-decoration:overline'>MN</span> //<span style='text-decoration:overline'>BC</span> </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#截線定理，欲求N為<span style='text-decoration:overline'>AC</span>之中點，已知<span style='text-decoration:overline'>AM</span>=<span style='text-decoration:overline'>MB</span>、<span style='text-decoration:overline'>MN</span> //<span style='text-decoration:overline'>BC</span> </div></td></tr>
</table>
丁禾
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丁禾：/* 中點定理和截線定理(丁禾) */
2016-09-25T11:48:37Z
<p><span dir="auto"><span class="autocomment">中點定理和截線定理(丁禾)</span></span></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="zh-Hant-TW">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年9月25日 (日) 11:48 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l120" >第120行：</td>
<td colspan="2" class="diff-lineno">第120行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*#∠1=∠2(對頂角)、∠3=∠4(內錯角)∴△NAM=NCP(ASS)</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*#∠1=∠2(對頂角)、∠3=∠4(內錯角)∴△NAM=NCP(ASS)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*#∴<span style='text-decoration:overline'>AN</span>=<span style='text-decoration:overline'>NC</span>(N為<span style='text-decoration:overline'>AC</span>之中點)</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*#∴<span style='text-decoration:overline'>AN</span>=<span style='text-decoration:overline'>NC</span>(N為<span style='text-decoration:overline'>AC</span>之中點)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">#中點定理，欲求<span style='text-decoration:overline'>MN</span>=1/2<span style='text-decoration:overline'>BC</span>、<span style='text-decoration:overline'>MN</span> //<span style='text-decoration:overline'>BC</span></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">#*證明：</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td></tr>
</table>
丁禾
http://www.jendo.org/wiki1231/index.php?title=%E9%80%B2%E9%9A%8E%E6%95%B8%E5%AD%B8%E5%8F%8A%E7%A7%91%E5%AD%B8/%E4%B8%89%E8%A7%92%E5%BD%A2&diff=24095&oldid=prev
丁禾：/* 中點定理和截線定理(丁禾) */
2016-09-25T11:22:22Z
<p><span dir="auto"><span class="autocomment">中點定理和截線定理(丁禾)</span></span></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="zh-Hant-TW">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年9月25日 (日) 11:22 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l115" >第115行：</td>
<td colspan="2" class="diff-lineno">第115行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#截線定理，欲求N為<span style='text-decoration:overline'>AC</span>之中點，已知<span style='text-decoration:overline'>AM</span>=<span style='text-decoration:overline'>MB</span>、<span style='text-decoration:overline'>MN</span> //<span style='text-decoration:overline'>BC</span> </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#截線定理，欲求N為<span style='text-decoration:overline'>AC</span>之中點，已知<span style='text-decoration:overline'>AM</span>=<span style='text-decoration:overline'>MB</span>、<span style='text-decoration:overline'>MN</span> //<span style='text-decoration:overline'>BC</span> </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>證明：</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">#*</ins>證明：</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>#*</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>#*<ins class="diffchange diffchange-inline">#以C為端點畫<span style='text-decoration:overline'>AB</span>的平行線，與<span style='text-decoration:overline'>MN</span>的延伸交於P。</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">#*#MBPC為平行四邊形，兩雙對邊平行等長∴<span style='text-decoration:overline'>AM</span>=<span style='text-decoration:overline'>MB</span>=<span style='text-decoration:overline'>PC</span></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">#*#∠1=∠2(對頂角)、∠3=∠4(內錯角)∴△NAM=NCP(ASS)</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">#*#∴<span style='text-decoration:overline'>AN</span>=<span style='text-decoration:overline'>NC</span>(N為<span style='text-decoration:overline'>AC</span>之中點)</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td></tr>
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丁禾：/* 中點定理和截線定理(丁禾) */
2016-09-25T11:02:57Z
<p><span dir="auto"><span class="autocomment">中點定理和截線定理(丁禾)</span></span></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="zh-Hant-TW">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年9月25日 (日) 11:02 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l114" >第114行：</td>
<td colspan="2" class="diff-lineno">第114行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Mid-segment of a triangle.svg|225px]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Mid-segment of a triangle.svg|225px]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline"> </del><<del class="diffchange diffchange-inline">nowiki</del>><del class="diffchange diffchange-inline">{{</del>overline<del class="diffchange diffchange-inline">|</del>overline<del class="diffchange diffchange-inline">}} </del></<del class="diffchange diffchange-inline">nowiki</del>></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">#截線定理，欲求N為</ins><<ins class="diffchange diffchange-inline">span style='text-decoration:overline'>AC</span</ins>><ins class="diffchange diffchange-inline">之中點，已知<span style='text-decoration:</ins>overline<ins class="diffchange diffchange-inline">'>AM</span>=<span style='text-decoration:</ins>overline<ins class="diffchange diffchange-inline">'>MB</span>、<span style='text-decoration:overline'>MN</span> //<span style='text-decoration:overline'>BC</ins></<ins class="diffchange diffchange-inline">span</ins>> <ins class="diffchange diffchange-inline"> </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">證明：</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">#*</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td></tr>
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丁禾：/* 中點定理和截線定理(丁禾) */
2016-09-25T10:49:10Z
<p><span dir="auto"><span class="autocomment">中點定理和截線定理(丁禾)</span></span></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="zh-Hant-TW">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年9月25日 (日) 10:49 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l114" >第114行：</td>
<td colspan="2" class="diff-lineno">第114行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Mid-segment of a triangle.svg|225px]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Mid-segment of a triangle.svg|225px]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>{{overline|overline}}</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"> <nowiki></ins>{{overline|overline}} <ins class="diffchange diffchange-inline"></nowiki></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td></tr>
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丁禾
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丁禾：/* 中點定理和截線定理(丁禾) */
2016-09-25T10:43:14Z
<p><span dir="auto"><span class="autocomment">中點定理和截線定理(丁禾)</span></span></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="zh-Hant-TW">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年9月25日 (日) 10:43 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l114" >第114行：</td>
<td colspan="2" class="diff-lineno">第114行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Mid-segment of a triangle.svg|225px]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Mid-segment of a triangle.svg|225px]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{overline|overline}}</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===特殊三角形===</div></td></tr>
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丁禾
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柯智懷：/* 特殊三角形 */
2016-09-22T07:07:01Z
<p><span dir="auto"><span class="autocomment">特殊三角形</span></span></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
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<tr class="diff-title" lang="zh-Hant-TW">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年9月22日 (四) 07:07 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l150" >第150行：</td>
<td colspan="2" class="diff-lineno">第150行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>##*如上∠A+∠B=90∘，∠A、∠B必互為餘角。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>##*如上∠A+∠B=90∘，∠A、∠B必互為餘角。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#在直角三角形中，斜邊上的中線等於斜邊的一半。(柯智懷)</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#在直角三角形中，斜邊上的中線等於斜邊的一半。(柯智懷)</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:MHEHH|200px]]</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:MHEHH<ins class="diffchange diffchange-inline">.svg</ins>|200px]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*自直角三角形◺ABC的斜線中點α作一中線至點B，自直角三角形◺ABC分割出另一個三角形△αBA。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*自直角三角形◺ABC的斜線中點α作一中線至點B，自直角三角形◺ABC分割出另一個三角形△αBA。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*依據中點定理可以透過由<span style='text-decoration:overline'>AC</span>及<span style='text-decoration:overline'>AB</span>的平行中點連接線<span style='text-decoration:overline'>αβ</span>分割△αBA為兩全等直角三角形（構成全等條件SAS），來確認△αBA為等腰三角形。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#*依據中點定理可以透過由<span style='text-decoration:overline'>AC</span>及<span style='text-decoration:overline'>AB</span>的平行中點連接線<span style='text-decoration:overline'>αβ</span>分割△αBA為兩全等直角三角形（構成全等條件SAS），來確認△αBA為等腰三角形。</div></td></tr>
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柯智懷
http://www.jendo.org/wiki1231/index.php?title=%E9%80%B2%E9%9A%8E%E6%95%B8%E5%AD%B8%E5%8F%8A%E7%A7%91%E5%AD%B8/%E4%B8%89%E8%A7%92%E5%BD%A2&diff=24009&oldid=prev
柯智懷：/* 特殊三角形 */
2016-09-22T06:58:53Z
<p><span dir="auto"><span class="autocomment">特殊三角形</span></span></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年9月22日 (四) 06:58 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l150" >第150行：</td>
<td colspan="2" class="diff-lineno">第150行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>##*如上∠A+∠B=90∘，∠A、∠B必互為餘角。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>##*如上∠A+∠B=90∘，∠A、∠B必互為餘角。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#在直角三角形中，斜邊上的中線等於斜邊的一半。(柯智懷)</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#在直角三角形中，斜邊上的中線等於斜邊的一半。(柯智懷)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[File:MHEHH|200px]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">#*自直角三角形◺ABC的斜線中點α作一中線至點B，自直角三角形◺ABC分割出另一個三角形△αBA。</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">#*依據中點定理可以透過由<span style='text-decoration:overline'>AC</span>及<span style='text-decoration:overline'>AB</span>的平行中點連接線<span style='text-decoration:overline'>αβ</span>分割△αBA為兩全等直角三角形（構成全等條件SAS），來確認△αBA為等腰三角形。</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">#*∵△αBA為等腰三角形，兩腰<span style='text-decoration:overline'>Aα</span>（斜邊的一半）和<span style='text-decoration:overline'>αB</span>（斜邊中線）等長</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">#:∴可得知直角三角形的斜邊中線長度等於斜邊的一半。</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>判定</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>判定</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#直角三角形。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#直角三角形。</div></td></tr>
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柯智懷
http://www.jendo.org/wiki1231/index.php?title=%E9%80%B2%E9%9A%8E%E6%95%B8%E5%AD%B8%E5%8F%8A%E7%A7%91%E5%AD%B8/%E4%B8%89%E8%A7%92%E5%BD%A2&diff=23976&oldid=prev
丁禾：/* 中點定理和截線定理 */
2016-09-22T03:26:32Z
<p><span dir="auto"><span class="autocomment">中點定理和截線定理</span></span></p>
<table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface">
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<col class="diff-marker" />
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上個修訂</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">於 2016年9月22日 (四) 03:26 的修訂</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l111" >第111行：</td>
<td colspan="2" class="diff-lineno">第111行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#四邊邊長的平方和等於兩條對角線的平方和。()</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#四邊邊長的平方和等於兩條對角線的平方和。()</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>===中點定理和截線定理===</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>===中點定理和截線定理<ins class="diffchange diffchange-inline">(丁禾)</ins>===</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Mid-segment of a triangle.svg|225px]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Mid-segment of a triangle.svg|225px]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>三角形兩邊中點連線平行於第三邊，且等於第三邊長的一半。</div></td></tr>
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丁禾