题型:单选题
难度:0.65
引用次数:400
题号:9299246
如图,边长为1的正方形
绕点
逆时针旋转得到正方形
,使边
恰好落在对角线AC上,边
与
交于点
,则四边形
的面积是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/2020/1/5/2370186688020480/2371349587181568/STEM/be5b963cd732412bba7d2e259f775a00.png?resizew=181)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad194a7c911eef46cf9a07eb4d6096f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ba4dfe11787df6a332ed60a981ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/2020/1/5/2370186688020480/2371349587181568/STEM/be5b963cd732412bba7d2e259f775a00.png?resizew=181)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2020-01-06 10:25:59
|
【知识点】 旋转综合题(几何变换)
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单选题
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适中
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名校
【推荐1】如图,平行四边形ABCD中,
,
.
,E是边AD上且
,F是边AB上的一个动点,将线段EF绕点E逆时针旋转60°,得到EG,连接BG、CG,则
的最小值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/12/7c93c202-32a0-47f7-9cfa-a21edf036143.png?resizew=198)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
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A.![]() | B.![]() | C.![]() | D.10 |
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单选题
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适中
(0.65)
真题
名校
【推荐2】如图,在方格纸上△DEF是由△ABC绕定点P顺时针旋转得到的.如果用(2,1)表示方格纸上A点的位置,(1,2)表示B点的位置,那么点P的位置为( )
![](https://img.xkw.com/dksih/QBM/2010/12/21/1574144546594816/1574144672063488/STEM/4085c0ec-22c8-4d99-aadd-fb1c748e2968.png?resizew=213)
![](https://img.xkw.com/dksih/QBM/2010/12/21/1574144546594816/1574144672063488/STEM/4085c0ec-22c8-4d99-aadd-fb1c748e2968.png?resizew=213)
A.(5,2) | B.(2,5) | C.(2,1) | D.(1,2) |
您最近一年使用:0次