如图,在△ABC中,BC=120,高AD=60,正方形EFGH一边在BC上,点E,F分别在AB,AC上,AD交EF于点N,则AN的长为_____ .
![](https://img.xkw.com/dksih/QBM/2021/2/2/2649277018611712/2652257935466496/STEM/13bfea03-a039-43c2-a71d-e3476985a46b.png)
更新时间:2021-02-06 15:35:29
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【推荐1】五巧板是一种类似七巧板的智力玩具,它是由一个正方形按如图1方式分割而成,其中图形①是正方形、小明发现可以将五巧板拼搭成如图2所示的“三角形”与“飞机”模型.在“飞机”模型中宽与高的比值![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176eac9403a93d10035c53327e141bf4.png)
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【推荐2】如图中,分别是由
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______ (用含
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【推荐1】如图,在△ABC中,D、E分别为AB、AC上的点,若DE∥BC,
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