如图,直线m∥n,∠ACB的顶点C在直线m上,若∠ACB=90°,∠1=45°,则∠2的度数为( )![](https://img.xkw.com/dksih/QBM/2018/11/4/2068403463249920/2069912139685888/STEM/b7a3184d71034c8cb678465b9e475c1d.png?resizew=5)
![](https://img.xkw.com/dksih/QBM/2018/11/4/2068403463249920/2069912139685888/STEM/14df88b398cd4b1c9ff7d6f4211bb872.png?resizew=117)
![](https://img.xkw.com/dksih/QBM/2018/11/4/2068403463249920/2069912139685888/STEM/b7a3184d71034c8cb678465b9e475c1d.png?resizew=5)
![](https://img.xkw.com/dksih/QBM/2018/11/4/2068403463249920/2069912139685888/STEM/14df88b398cd4b1c9ff7d6f4211bb872.png?resizew=117)
A.145° | B.140° | C.135° | D.130° |
2018·山西太原·三模 查看更多[3]
更新时间:2018-11-06 13:09:56
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【知识点】 根据平行线的性质求角的度数解读
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【推荐2】如图,在长方形ABCD中,点E,G、F分别在边AD、BC、AB上,将△AEF沿着EF翻折至△A′EF,将四边形EDCG沿着EG翻折至ED′C′G,使点D的对应点D′落在AE上,已知∠AFE=70°,则∠BGC′的度数为( )
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A.20° | B.30° | C.40° | D.50° |
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