如图,在平面直角坐标系中,矩形
与矩形
是以点
为位似中心的位似图形,点
的坐标为
,若
,则
的长是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/28031cad-1dad-4457-b131-2eb36764efb5.png?resizew=353)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85fff1dd4920f99effb1d47fdfa24a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee05fdbfca9281f1eb74e11c8144938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657d5471e57b894c3833bb3f43ff38ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ecac2dad4cffdd971fd23deacff3fc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/28031cad-1dad-4457-b131-2eb36764efb5.png?resizew=353)
A.3 | B.4 | C.4.5 | D.6 |
更新时间:2021-06-13 14:49:38
|
【知识点】 求位似图形的对应坐标解读
相似题推荐
单选题
|
较易
(0.85)
【推荐1】已知,
缩小后变为
,其中
、
的对应点分别为
、
,若线段
上有一点
,则点
在
上的对应点
的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a64ab788f5642b94ccbdc23c9db5b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fceddc8200cc9ef7adb9b0b8aac87647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db781b1a23c37498863885763324e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771542c0696083261ebd5c998a78fc91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7095e8fc8211c462637ec02304375e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21872d8f6a518e0a2993ccf7a795ed2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
A.![]() ![]() | B.![]() | C.![]() ![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】如图,在平面直角坐标系中,
与
位似,位似中心为原点O,位似比为1:2,若点
,则点
的坐标为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/21fac9de-5452-4eaa-a9de-3fc132083c02.png?resizew=202)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/227742a5290db6c20a02b2674c6e179e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/21fac9de-5452-4eaa-a9de-3fc132083c02.png?resizew=202)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次