如图,在1×2的小矩形组成的网格中,将△ABC绕点A逆时针旋转90°,则点C的对应点的位置为图中的( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/c1850845-18d4-4131-af7c-3010fa1d0fa5.png?resizew=193)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/c1850845-18d4-4131-af7c-3010fa1d0fa5.png?resizew=193)
A.点D | B.点E | C.点F | D.点G |
更新时间:2020-02-28 20:48:51
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【推荐1】如图,将
绕点C顺时针旋转得到
,若点A恰好在ED的延长线上,
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/8535e504-216d-435c-a10e-e9947d6572b1.png?resizew=199)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f850c705372b8a85489505da53239fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3d3158ccfb969dad6a0a6e92a49679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/8535e504-216d-435c-a10e-e9947d6572b1.png?resizew=199)
A.55° | B.60° | C.65° | D.70° |
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【推荐2】图1的摩天轮上以等间隔的方式设置
个车厢,车厢依顺时针方向分别编号为
号到
号,且摩天轮运行时以逆时针方向等速旋转,旋转一圈花费
分钟.若图2表示
号车厢运行到最高点的情形,则此时经过多少分钟后,
号车厢才会运行到最高点?( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/aaf0a6ca-db84-483b-92e4-a912b3eb8396.png?resizew=293)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492b6d3883713fcaa8a4fdd87b87b480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492b6d3883713fcaa8a4fdd87b87b480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/aaf0a6ca-db84-483b-92e4-a912b3eb8396.png?resizew=293)
A.![]() | B.![]() | C.![]() | D.![]() |
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