如图,菱形
中,
,E为边
上一点,将
沿
折叠,点B的对应点为点F,
交
于G,
交
于H,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035dcbf5f13b31f3d15a82cc1e28a507.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32436704a722d5e568ff5c175bf3c662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3067752f15c2a4245e4c99237478a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035dcbf5f13b31f3d15a82cc1e28a507.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/17/473c45dd-2360-43da-9287-410014f7adde.png?resizew=201)
更新时间:2023-11-17 08:10:51
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【推荐1】如图所示,在
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【推荐2】如图,点
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【推荐1】如图在菱形
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的式子表示)
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【推荐2】如图,在平面直角坐标系中,四边形
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于点
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值为___________ .
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【推荐1】如图,在扇形
中,点
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折叠后恰好与
,
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,
.已知
,
,则折痕
的长为 __ .
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名校
【推荐2】如图,在
中,
,点
是
边上的一动点(不与点
重合),过点
作
交
于点
,将
沿直线
翻折,点
落在射线
上的点
处.当
为直角三角形时,则折叠后所得到的四边形
的周长为______ .
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解题方法
【推荐1】如图,在边长为4的正方形ABCD内有一动点P,且BP=
.连接CP,将线段PC绕点P逆时针旋转90°得到线段PQ.连接CQ、DQ,则
DQ+CQ的最小值为 ___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/2021/8/11/2783653334319104/2795973346295808/STEM/e131f2da90144be19bb783f72f87b9f2.png?resizew=155)
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【推荐2】如图,正方形
的边长为2,点E是平面内动点,
,连接
,将
绕点E顺时针旋转
得
,连接
,
,当
最大时,
的长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338c6c83ab4abc895ac36ab888a55be6.png)
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