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什么东西不能用放大镜放大
更新时间: 2019-05-27 00:00:00  

角度。因角度都是两条直线的交叉位置决定的,放大镜只能放大物体却不能改变直线的位置。比如边长1厘米的等边三角形,每个角是60度,放大镜里看,三角形确实变大了,变成边长是5厘米的等边三角形,但是每个角还是60度。

关键词: 什么 东西 放大镜 放大

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