如图,把一张长方形纸片ABCD沿EF折叠后,点A落在CD边上的点G处,点B落在点H处,若∠1=50°,则图中∠2的度数为( )
![](https://img.xkw.com/dksih/QBM/2021/7/7/2758880947601408/2759125925371904/STEM/a33a3606d5b444a88ef2342054a3d680.png?resizew=193)
![](https://img.xkw.com/dksih/QBM/2021/7/7/2758880947601408/2759125925371904/STEM/a33a3606d5b444a88ef2342054a3d680.png?resizew=193)
A.100° | B.105° | C.110° | D.115° |
更新时间:2021-07-30 13:32:39
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【推荐1】如图,把一张矩形纸片
沿
折叠后,点
分别落在
的位置上,
交
于点
.已知
,那么∠FEG=( )
![](https://img.xkw.com/dksih/QBM/2018/10/18/2056297708519424/2059829334843392/STEM/a08759573b5f47629c32c2d1f53cce64.png?resizew=137)
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![](https://img.xkw.com/dksih/QBM/2018/10/18/2056297708519424/2059829334843392/STEM/a08759573b5f47629c32c2d1f53cce64.png?resizew=137)
A.58° | B.60° | C.45° | D.30° |
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【推荐2】如图,把一个长方形的纸片对折两次,然后剪下一个角,把剪下部分展开后,得到的图形是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/20/403d8f58-100f-4005-baa8-2d0935a85cd5.png?resizew=101)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/20/403d8f58-100f-4005-baa8-2d0935a85cd5.png?resizew=101)
A.平行四边形 | B.菱形 | C.矩形 | D.正方形 |
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