如图,
与
是以坐标原点
为位似中心的位似图形,若点
,
,
则
的面积为__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7310211fcb027421880aa21d57802594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef7f7f557ced2259c490b8f7c264a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0efc38e1ecf51c7759f650cdd37388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b15367de87419c5914b1db60e35cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7310211fcb027421880aa21d57802594.png)
![](https://img.xkw.com/dksih/QBM/2019/7/23/2253062911107072/2253094356082689/STEM/96a8c1529334488ab85358d0f56d0c29.png?resizew=257)
2019·广西百色·中考真题 查看更多[3]
更新时间:2019-07-25 23:05:46
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【知识点】 求位似图形的对应坐标解读
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适中
(0.65)
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【推荐1】如图,
,
,
,以点
为位似中心,按比例尺
把
缩小,则点
的对应点
的坐标为________ ,点
的对应点
的坐标为________ .(请在直角坐标系中画
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c55e280bffaf58f50f1933323301636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883ba311a4049fb6a35b3b7d4f0e4d42.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1acf73afe897ced8cdb80e609d8be230.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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适中
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【推荐2】如图,以点
为位似中心,将
按相似比
缩小,得到
,则点
的对应点D的坐标为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77cb0a28d72b7e7eacc877e97bc7ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d65e051e943ab28fa57aee2fb57994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ebd2da016e7029c4dd72b9e377190c.png)
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