如图,在
中,
,
和
的平分线交于点
,则
的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/456e0f77d83975fdbdb60b499cb5b521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0433f8116768b42642a7f7e5977ce6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-05-09 20:38:40
|
【知识点】 与角平分线有关的三角形内角和问题解读
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【推荐1】
中,它的三条角平分线的交点为O,若∠B=80°,则∠AOC的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.100° | B.130° | C.110° | D.150° |
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单选题
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较易
(0.85)
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【推荐2】如图,在△ABC中,∠BAC=60º,∠C=78º,AD平分∠BAC. 则∠ADC等于( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/22/ea619f4d-8250-4bcf-af2c-7e8c816d7f51.png?resizew=129)
A.62º | B.72º | C.78º | D.108º |
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