已知,
是
的边
上一点,
,
和
的平分线交于点
,若
,则
的大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f13710c9a07dd652e39fe110549252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d29e7c4d6216690152430b09f9cf0c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d19f963f7c803bcfcbb265ec6d4304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56a36fd2ca8990adcb07e3fc0160672b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfc2771aa0d5b97d2297f8a26a6f6b1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2021-01-28 23:14:35
|
【知识点】 三角形的外角的定义及性质解读
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图,在△ABC中,∠ABC与∠ACD的平分线交于点A1,得∠A1;∠A1BC与∠A1CD的平分线相交于点A2,得∠A2;……;∠A2010BC与∠A2010CD的平分线相交于点A2011,得∠A2011.如果∠A=80°,则∠A2016=( )°
![](https://img.xkw.com/dksih/QBM/2021/6/21/2747541420466176/2797401450274816/STEM/f49119f2-e0d8-4347-8cea-fb20583bc5fe.png)
![](https://img.xkw.com/dksih/QBM/2021/6/21/2747541420466176/2797401450274816/STEM/f49119f2-e0d8-4347-8cea-fb20583bc5fe.png)
A.80 | B.802016 | C.40 | D.80×![]() |
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单选题
|
适中
(0.65)
【推荐2】如图,点P,Q是等边
边
,
上的动点,它们分别从点A,B同时出发,以相同的速度向点B,C方向运动(不与点B,C重合).连接
,其中
与
交于点M.针对点P,Q的运动过程,下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/21/c0e9adb1-b601-40e9-9ddf-acb894b22ac3.png?resizew=150)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13159856fda07c67b2d525737cd9931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/21/c0e9adb1-b601-40e9-9ddf-acb894b22ac3.png?resizew=150)
A.![]() | B.![]() |
C.![]() | D.![]() |
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