如图,在平面直角坐标系中,已知点A,B的坐标分别为
,
.以点O为位似中心,在原点的另一侧按
的相似比将
缩小,则点A的对应点
的坐标是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138506a762e636aa75a4d54f5b739b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5548c101f84334ab651fd7139e324f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe103f073845122c66f22dcb14b711f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/f6049428-4b05-4336-95f8-ec85263023a7.png?resizew=136)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-02-20 21:23:35
|
【知识点】 求位似图形的对应坐标解读
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【推荐1】如图,线段AB两个端点的坐标分别是A(6,4),B(8,2),以原点O为位似中心,在第一象限内将线段AB缩小为原来的
后得到线段CD,则端点C的坐标为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/14/9746f140-4e3b-455a-82e0-0b95af900965.png?resizew=216)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/14/9746f140-4e3b-455a-82e0-0b95af900965.png?resizew=216)
A.(3,2) | B.(4,1) | C.(3,1) | D.(4,2) |
您最近一年使用:0次
单选题
|
容易
(0.94)
【推荐2】如图,点
在
的边AC上,以原点O为位似中心,在第一象限内将
缩小到原来的
,得到
,则点P在
上的对应点
的坐标为( )
![](https://img.xkw.com/dksih/QBM/2021/11/17/2853326565801984/2863222340870144/STEM/3df4c63c-5b66-4338-9865-0c2a428dc1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/363c49995adadb7220312529075ffc3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cfad1ba71a78d8f415335cde2f8c52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://img.xkw.com/dksih/QBM/2021/11/17/2853326565801984/2863222340870144/STEM/3df4c63c-5b66-4338-9865-0c2a428dc1e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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