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四边形有4条直的边这句话对吗
更新时间: 2020-09-23 00:00:00  

“四边形有4条直的边”这句话是对的,这句话可以理解为,四边形的四条边是直的。

四边形的定义如下:由不在同一直线上的不交叉的四条线段依次首尾相接围成的封闭的平面图形或立体图形叫四边形,由凸四边形和凹四边形组成。顺次连接任意四边形上的中点所得四边形叫中点四边形,中点四边形都是平行四边形。

关键词: 四边形

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