如图,
中,
,
,将
绕
点按逆时针方向旋转
角
得到
,设
交
于
,连接
,当旋转角
度数为________ ,
是等腰三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab1f120ed7f249b68eb5b250b8df701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/24/6af57321-b627-4c30-9d68-cb41f758f549.png?resizew=211)
更新时间:2023-11-24 10:19:08
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【推荐1】如图,已知
中,
、
、
,将
绕点
旋转,使点
落在边
上的点
处,此时点
落在点
,
与
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,则
长为 ___________ .
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【推荐2】在中,
,
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沿直线
翻折得到
,点
的对应点为点
,连接
,如果
是以
为直角边的等腰直角三角形,那么
的长等于
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【推荐1】如图,抛物线
的解析式为
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顺时针旋转
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,图形
分别与
轴、
轴正半轴交于点
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,连接
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【推荐2】如图,在正方形ABCD中,AB=8,点H在CD上,且CH=2,点E绕着点B旋转,且BE=2,在CE的上方作正方形EFGC,则线段FH的最小值是_________________ .
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