如图,矩形纸片ABCD中,
,
.现将其沿AE对折,使得点B落在边AD上的点
处,折痕与边BC交于点E,则
的长为___________ (cm).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82cf997be91eba5aa57c308a3461c799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67fa79283e769e44399dab522aeaaf71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd4c85bb98a2a0afddd7ed92578ad2e.png)
![](https://img.xkw.com/dksih/QBM/2020/7/4/2498606777917440/2498829687857152/STEM/45b7d224eb954b97bc560991d85be0c2.png?resizew=179)
更新时间:2020-08-01 21:57:28
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【推荐1】如图,菱形
中,对角线
、
交于点
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,作
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【推荐2】如图,在△ABC中,∠ACB=90°,AB=10,BC=6,CD⊥AB于点D,则CD的长为 ___ .
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【推荐1】如图,将矩形纸片
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【推荐2】将一张长方形纸片先沿着
折叠后打开,
为
上一点(如图①),再沿
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【推荐1】如图,在矩形ABCD中,∠BOC=120°,AB=5,则此矩形的周长为_____ .
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【推荐2】如图,
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【推荐2】如图,点E、F、G、H分别是四边形
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