如图,在菱形
中,
,将菱形
绕点A逆时针旋转后得到对应的四边形
(旋转角小于180°),连接AC,若
,则菱形ABCD旋转的角度是____ 度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac99f836170845a232cb9d0fdda2f59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad194a7c911eef46cf9a07eb4d6096f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba73f19550c6345439f6ae569d235f3e.png)
更新时间:2024-05-09 13:27:40
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【推荐1】如图,E是菱形ABCD的对角线的交点,点F在线段CE上,且AF=AD,若∠CDF=39°,则∠AFD=______ .
![](https://img.xkw.com/dksih/QBM/2021/9/9/2804361593536512/2805075805102080/STEM/0cda67c8-396b-4a45-88b0-0e26ca4abe72.png)
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【推荐2】如图,在菱形ABCD中,
,按以下步骤作图:
①分别以点C和点D为圆心,大于
的长为半径画弧,两弧交于点M,N;
②作直线MN,且MN恰好经过点A,与CD交于点E,连接BE,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459459559720ab5e154a80723c47cc30.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
①分别以点C和点D为圆心,大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b840be5852709e18ea985954545e78d.png)
②作直线MN,且MN恰好经过点A,与CD交于点E,连接BE,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459459559720ab5e154a80723c47cc30.png)
![](https://img.xkw.com/dksih/QBM/2022/5/11/2976968368488448/2987157788188672/STEM/18e45e26-bbfa-4d74-bd36-88bd086663b1.png?resizew=209)
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【推荐1】如图,
是正方形
内一点,将
绕点
顺时针方向旋转后与
重合,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8182ae204fa8d73bab83c785835dc20.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94e59ad6695d077e3f31d330d5734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eea78bf026d76f1cb9cc3dc9349a193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8182ae204fa8d73bab83c785835dc20.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/12/fbf11dc6-f862-4ab5-834b-46b215a9f805.png?resizew=133)
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