如图,将含
的直角三角板
绕点
逆时针旋转到
处(点
在一条直线上),则本次旋转的旋转角度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b342d5cb6dd1c84a82f6aca68ed829c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812c7088b2ce789a74bd47042c2fd223.png)
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更新时间:2024-05-12 11:45:46
|
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单选题
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容易
(0.94)
【推荐1】将一副三角板按如图所示摆放,点D在
上,
,则
的大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
容易
(0.94)
【推荐2】将一副三角板按如图所示的位置摆放在直尺上,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
容易
(0.94)
【推荐1】如图,
的半径为2,将
的内接正六边形
绕点
顺时针旋转,第一次与自身重合时,点
经过的路径长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/1/d6148bb2-5edf-4536-96cc-9bf15c9443eb.png?resizew=154)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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您最近一年使用:0次
单选题
|
容易
(0.94)
【推荐2】如图,在菱形
中,
,
,
是
的中点,将
绕点
逆时针旋转至点
与点
重合,此时点
旋转至
处,则点
在旋转过程中形成的
、线段
、点
在旋转过程中形成的
与线段
所围成的阴影部分的面积为( )
![](https://img.xkw.com/dksih/QBM/2020/1/28/2386908472877056/2387598569562112/STEM/b527a205ceaf4f748cc665ede5abba2e.png?resizew=189)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次