如图,
是
绕点
顺时针旋转
后得到的图形.若点
恰好落在
上,且
的度数为
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/dee5e8f9-b244-4af8-97cd-62d52a0abe9d.png?resizew=148)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9a6eeeebf3cff569578d7366b755aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d36581140ebac5d28438ea63b1b23b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/dee5e8f9-b244-4af8-97cd-62d52a0abe9d.png?resizew=148)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-03-13 22:29:12
|
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【推荐1】如图,在平面直角坐标系xOy中,矩形OABC的边O在x轴上,OC在y轴上,OA=6,OC=4,PC=
BC.将矩形OABC绕点O以每秒45°的速度沿顺时针方向旋转,则第2019秒时,点P的坐标为( )
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A.(3![]() ![]() | B.(2,﹣1) |
C.(![]() ![]() | D.(﹣1,2) |
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单选题
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名校
【推荐2】如图,将△ABC绕点A逆时针旋转120°,得到△ADE.若点D在线段BC的延长线上,则
的大小为( )
![](https://img.xkw.com/dksih/QBM/2021/9/9/2804361593536512/2805075804921856/STEM/60930817-948a-44c7-9134-3f8bb24a668e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://img.xkw.com/dksih/QBM/2021/9/9/2804361593536512/2805075804921856/STEM/60930817-948a-44c7-9134-3f8bb24a668e.png)
A.30° | B.40° | C.50° | D.60° |
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