如图,在同一平面内,将
绕点
旋转到
的位置,若
,
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/30/1c8051b9-a6a0-44b3-b226-a19f17dea1cd.png?resizew=147)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93394d8a463f5ee5cbbbcb77a6771e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7243e07ec64ced92d43fcf64a47295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb86957845b6b07afe3d9011cab14e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f10681704c4fccfd37664eaf34391dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/30/1c8051b9-a6a0-44b3-b226-a19f17dea1cd.png?resizew=147)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2018-11-05 09:23:40
|
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【推荐1】如图,点
是等边三角形
内一点,
,
,
是由
绕点
逆时针旋转得到的,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/c0fb85d1-1fd0-4f8d-b29f-0b47af03646e.png?resizew=147)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/c0fb85d1-1fd0-4f8d-b29f-0b47af03646e.png?resizew=147)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,已知在▱ABCD中,AE⊥BC于点E,以点B为中心,取旋转角等于∠ABC,把△BAE顺时针旋转,得到△BA′E′,连接DA′.若∠ADC=60°,AD=5,DC=4,则DA′的大小为( )
![](https://img.xkw.com/dksih/QBM/2019/2/15/2141231964315648/2148493192421376/STEM/e64f1ba2b1584830af380849d65f7669.png?resizew=116)
![](https://img.xkw.com/dksih/QBM/2019/2/15/2141231964315648/2148493192421376/STEM/e64f1ba2b1584830af380849d65f7669.png?resizew=116)
A.1 | B.![]() | C.![]() | D.2![]() |
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【推荐1】如图,P是等边三角形ABC内一点,将△ACP绕点A顺时针旋转60°得到△ABQ,若PA=2,PB=4,
,则四边形APBQ的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/15d86f12-8a8a-46b4-b3ac-28a17fbea742.png?resizew=130)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1720da6d65e7fa854d98322d3864240.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/15d86f12-8a8a-46b4-b3ac-28a17fbea742.png?resizew=130)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,△ABC中,AC=5,AB=13,将△ABC绕点C逆时针旋转当点A的对应点落在BC边上的点D处时,点B的对应点恰好落在AC延长线上的点E处,则CE的长为( )
![](https://img.xkw.com/dksih/QBM/2021/5/9/2717107179773952/2786098848530432/STEM/561f73bd-6b08-4d5b-bfdb-e5724aba314c.png)
![](https://img.xkw.com/dksih/QBM/2021/5/9/2717107179773952/2786098848530432/STEM/561f73bd-6b08-4d5b-bfdb-e5724aba314c.png)
A.5 | B.12 | C.13 | D.18 |
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