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如何做一个角的角平分线

更新时间: 2020-09-16 00:00:00     

1、先作一个角AOB,以点O为圆心,任意长为半径作弧,分别交射线OA、OB于点C,D;

2、分别以点C,D为圆心,大于2分之一CD的长为半径作弧,两弧在角AOB的内部交于点M;

3、连接OM并延伸,OM就是角AOB的平分线。

关键词: 如何 一个 平分

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