如图,四边形ABCD的长条形纸带,AB//CD,将长方形沿 EF折叠,A、D分别于A’、D'对应,若 ∠CFE =2∠CFD',则∠AEF 的度数是___ .
![](https://img.xkw.com/dksih/QBM/2021/6/17/2744783966150656/2798854730817536/STEM/8648b214-605d-4022-9b2e-b185c0faf96e.png)
20-21七年级下·广东深圳·期中 查看更多[2]
广东省深圳市宝安区2020-2021学年七年级下学期期中数学试题(已下线)专题1.26 平行线(折叠问题)(巩固篇)(专项练习)-2022-2023学年七年级数学下册基础知识专项讲练(浙教版)
更新时间:2021-09-01 18:27:26
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【推荐1】已知直线
,
为两直线间一定点,
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为平面内一动点,且满足
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【推荐2】如图,三角形ABC中,D是AB上一点,F是BC上一点,E,H是AC上的点,EF的延长线交AB的延长线于点G,连接DE,DH,DE∥BC.若∠CEF=∠CHD,∠EFC=∠ADH,∠CEF:∠EFC=5:2,∠C=47°,则∠ADE的度数为__ .
![](https://img.xkw.com/dksih/QBM/2021/6/10/2739995802689536/2740520032165888/STEM/c2bad8454bee406e8e1088d761c8ca6b.png?resizew=177)
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【推荐1】如图,在矩形
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【推荐2】如图,在矩形
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