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菱形的判定方法及公理
更新时间: 2020-08-19 00:00:00  

四边都相等的四边形是菱形。两条 对角线互相垂直的平行四边形是菱 形 。邻边相等 的平行四边形是菱形。对角线互相垂直平分的 四边形是菱形 。一条对角线平分一个顶角的平行四边形是菱形。

关键词: 菱形 判定 方法 公理

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