已知,在矩形ABCD中,AB=3,BC=5,点E在DC上,将矩形沿AE折叠,使点D落在BC边上F处,则tan∠DAE=______ ;点G在BF上,将矩形沿AG折叠,使点B落在AF上点H处,延长GH交AE于M,连接MF,则MF=______ .
![](https://img.xkw.com/dksih/QBM/2021/6/1/2733785114976256/2737221974999040/STEM/d5caebe7-79fd-4979-a77a-576e7a793eac.png)
更新时间:2021-06-06 16:35:16
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【推荐1】如图,Rt△ABC中,∠C=90°,AB=5,AC=3,D是AB的中点,E是直线BC上一点,把△BDE沿直线ED翻折后,点B落在点F处,当FD⊥BC时,线段BE的长为_____ .
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【推荐2】如图,在正方形
中,
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为
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沿
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【推荐1】如图,在矩形OABC纸片中,OA=7,OC=5,D为BC边上动点,将△OCD沿OD折叠,当点C的对应点落在直线AF上时,记为点E,若此时连接CE,同时OA=OF,则△OCE面积为__ .
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【推荐1】已知Rt△ABC中,∠A、∠B是锐角且∠A≠∠B,在6个三角函数值sinA、cosA、tanA、sinB、cosB、tanB中任取一个,则取出的三角函数值大于1的概率是______ .
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