如图,在△ABC中∠A=30°,∠B= 40°,则∠ACD的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/27/0162b8fa-dce5-42ee-811a-c3fdf9bc4b43.png?resizew=238)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/27/0162b8fa-dce5-42ee-811a-c3fdf9bc4b43.png?resizew=238)
A.50° | B.60° | C.70° | D.80° |
更新时间:2022-06-25 22:08:43
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【知识点】 三角形的外角的定义及性质解读
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【推荐1】如图,四边形ABCD中,
,
,
平分
,
平分
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的值是( )
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A.180° | B.200° | C.220° | D.240° |
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【推荐2】如图,将三角尺的直角顶点放在直尺的一边上,
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A.![]() | B.![]() | C.![]() | D.![]() |
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