如图,在
中,
,
,点E是边
上一点,以
为斜边往
侧作等腰
,连接
,若
,四边形
的面积为12,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32217457c4e96e2ef155cf15c1b65d97.png)
_________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5f441402ee632377b6bedeb060f3d9.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81b4e95f60e84d23e650fc70be62874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19292af4b510dc0f076f9e8ea6dae143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcca8b9ba7a9fdd7d18ce9c1e86d2cd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32217457c4e96e2ef155cf15c1b65d97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5f441402ee632377b6bedeb060f3d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/34a8aa8c-3bcb-4567-8acd-e3fef887afd5.png?resizew=178)
2019·浙江杭州·模拟预测 查看更多[3]
(已下线)【新东方】 初中数学955【2019年】【初三下】(已下线)专题14 动态几何(考点专练)-备战2021年中考数学考点微专题(上海专用)(已下线)第24课 相似三角形的性质 利用相似三角形测高-2022-2023学年九年级数学上册课后培优分级练(北师大版)
更新时间:2021-01-14 15:08:46
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【知识点】 相似三角形的判定与性质综合
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【推荐1】如图,矩形
中,
,点P在对角线
上,过点P作
,交边
于点M,N,过点M作
交
于点E,连接
.下列结论:①
;②四边形
的面积不变;③当
时,
;④
的最小值是20.其中所有正确结论的序号是__________ .
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【推荐2】如图,以
为直径的半圆
内有一条弦
,
是弦
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于点
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,
,则
的最大值是________ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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