如图,已知矩形
中,
,
,E是
边上一点,将
沿直线
翻折得到
,其中点A的对应点是点
,且点
落在
上,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdfe7976bd3f16bfef5c6f1b4f20f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/11/4141d8b6-7041-421a-a56d-2d477f5c534a.png?resizew=156)
更新时间:2022-08-06 08:39:05
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解答题-证明题
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【推荐1】如图,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4354365ca0929f8a606ed0bf341e4ca.png)
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解答题-作图题
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【推荐2】问题情境:如图,在Rt△ABC中,∠ACB=90°∠BAC=30°.
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【推荐1】如图,在Rt△ABC中,∠C=90°,AC=3,BC=4.现将线段AC沿AD折叠后,使得点C落在AB上,求折痕AD的长度.
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【推荐2】如图,有一个直角三角形纸片,两直角边AC=18cm,BC=24cm,现将直角边AC沿直线AD折叠,使它落在斜边AB上,且与AE重合,你能求出BD的长吗?
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解答题-证明题
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【推荐1】在平面直角坐标系中,矩形OABC的顶点O、A、C的坐标分别为O(0,0),
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解答题-证明题
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真题
【推荐2】如图,已知矩形ABCD中,AB=8,BC=x(0<x<8),将△ACB沿AC对折到△ACE的位置,AE和CD交于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/31/7088d067-478c-4a5f-9365-fa221322f924.png?resizew=143)
(1)求证:△CEF≌△ADF;
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/31/7088d067-478c-4a5f-9365-fa221322f924.png?resizew=143)
(1)求证:△CEF≌△ADF;
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