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两条直线相交成几个角

更新时间: 2020-08-19 00:00:00     

两条线相交后,单个角即小于180º有4个;两个角组成的角有4个,三个角组成大大角有3人;四个角组成的角有1个,所以总共有12个角。

关键词: 直线 相交

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