有两张完全重合的矩形纸片,小亮同学将其中一张绕点
顺时针旋转
后得到矩形
(如图
),连结
、
,若此时他测得
.小红同学用剪刀将
与
剪去,与小亮同学探究.他们将
绕点
顺时针旋转得
,
交
于点
(如图
),设旋转角为
,当
为等腰三角形时,则旋转角
的度数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c2bb7be2e9410a16502268fd4c67be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12d93bd1130088b622602a6c21c9c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e11f8a5e5014badb629066f47d590fa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6904f78bb6884bf09adbe32f5df197b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12713ef88cb4d588fcae9085fa30e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53fb3b04c17d699e45b9c8218bb10d64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3207084f12acfa525d5b5b569cb7131e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2878f616a6fdb5b9948ce0776a97c5c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06586df4b4f439b97323545caa1c26c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c2bb7be2e9410a16502268fd4c67be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c0980f20058ee6f9922beae567bb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfb537884a6e6feaa2a4c6457ab6dd2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/847b34bf50325f583b34d95ad11ac20f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a862b820c5e5cf46c575b79167f2e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2fd5ef87904b43e3f8f80fa9582dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996c904eb5670dc07e54cf5cbc0d74a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61c6f5b7088a51e65765c63d9ae4939.png)
![](https://img.xkw.com/dksih/QBM/2018/11/1/2066074942193664/2068362442104833/STEM/2f1abb64c4724d9ea4b2f834159a0bb0.png?resizew=262)
更新时间:2018-11-06 14:10:44
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【推荐1】如图,
中,
,
,点
为
边上一动点(不与点
、
重合),当
为等腰三角形时,
的度数是________ .
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【推荐2】如图,等腰三角形
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,腰
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,
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边的中点,点M为线段
上的一个动点,则
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名校
【推荐1】如图,四边形
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_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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