若△ABC∽△DMN,
,AC=6,则DN=____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6519388c9d1ef6490569ee631a72e15e.png)
更新时间:2019-01-23 18:07:00
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【推荐1】如图,在矩形
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【推荐2】“今有邑方二百步,各开中门,出东门一十五步有木,问:出南门几何步而见木?”这段话摘自《九章算术》,意思是说:如图,正方形城池
,城墙
长200步,东门点
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____________ .
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【推荐1】若△ABC∽△A′B′C′,∠A=35°,∠C′=85°,则∠B=________ °,∠B′=________ °.
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【推荐2】如果两个相似三角形的最长边分别是35厘米和14厘米,它们的周长之差60厘米,那么这两个三角形的周长分别是________ .
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