60度的角作角平分线交60度角所对的直角边于一点,在过这点作斜边的垂线
那么分成的三个区域,面积相等 形状一样,可以自己画图看看,我画图很容易就得出来了
将有一个角是30度的直角三角形分成三份大小相等和形状一样的三角形,怎么分?
将有一个角是30度的直角三角形分成三份大小相等和形状一样的三角形,怎么分?
数学人气:288 ℃时间:2019-10-19 17:38:28
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