在平面直角坐标系中,若点
与点
之间的距离是4,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e3ccc38868099bc4d542e00e0b66685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1a5fbf15842b631897d0229ff5d4e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
A.7 | B.![]() | C.![]() | D.![]() |
更新时间:2020-09-29 21:58:25
|
【知识点】 坐标与图形
相似题推荐
单选题
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适中
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【推荐1】如图,在平面直角坐标系中,四边形
是矩形,过
中点
作
交
于点
,连接
,若点
的坐标为
,
,则点
的坐标是( )
![](https://img.xkw.com/dksih/QBM/2021/7/13/2763083231879168/2770364200296448/STEM/e9e21a57-70ab-435a-8347-ef41847145da.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7dbb4d8de32b258d813996710d6241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d5a8fddaedd9f15e26db1df377da4c9.png)
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![](https://img.xkw.com/dksih/QBM/2021/7/13/2763083231879168/2770364200296448/STEM/e9e21a57-70ab-435a-8347-ef41847145da.png)
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适中
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名校
【推荐2】如图,在平面直角坐标系中,点
,点
,连接
,将线段
绕点
顺时针旋转
得到线段
,连接
,则线段
的长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241ce9bd28046ce9b90f43b391132884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49cba284d675a3028d7a8d54f1f8ae70.png)
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