如图,把矩形ABCD沿EF折叠,点A、B分别落在A′、B′处.A′B′与AD交于点G,若∠CFB′=60°,则∠AEF=( )
![](https://img.xkw.com/dksih/QBM/2019/5/22/2209017565216768/2211429840658433/STEM/f43514a96bbb426d8f3391912abffd9b.png?resizew=99)
![](https://img.xkw.com/dksih/QBM/2019/5/22/2209017565216768/2211429840658433/STEM/f43514a96bbb426d8f3391912abffd9b.png?resizew=99)
A.110° | B.115° | C.120° | D.130° |
更新时间:2019-05-25 19:48:26
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【推荐1】如图,由AD∥BC可以得到的是( )
![](https://img.xkw.com/dksih/QBM/2017/9/26/1782397553811456/1784259085869056/STEM/ebc19019-6859-4776-94e9-f994313ca8ae.png)
![](https://img.xkw.com/dksih/QBM/2017/9/26/1782397553811456/1784259085869056/STEM/ebc19019-6859-4776-94e9-f994313ca8ae.png)
A.∠1=∠2 | B.∠3+∠4=90° |
C.∠DAB+∠ABC=180° | D.∠ABC+∠BCD=180° |
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【推荐2】如图,
,
,
的角平分线
交
于点G,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/8/8acd46e8-badf-4633-bf02-b059a6498241.png?resizew=146)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,在矩形
中,点
是
的中点,将
沿
折叠后得到
,点F在
内部,延长
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于点
,若
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的长是( )
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A.2 | B.![]() | C.![]() | D.3 |
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【推荐2】如图,将矩形纸片
沿
折叠,得到
,
与
交于点E.若
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的度数为( )
![](https://img.xkw.com/dksih/QBM/2023/3/1/3185240214323200/3185333815713792/STEM/9360d722c41c40298b3b1819e07e31cf.png?resizew=121)
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A.20° | B.10° | C.15° | D.25° |
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