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正方形内角和为多少度
更新时间: 2020-10-31 00:00:00  

正方形内角和为360度。正方形是四边形,四个内角都是90度所以是360度。正方形的两组对边分别平行,四条边都相等,对角线互相垂直、平分且相等,每条对角线平分一组对角。有一组邻边相等且一个角是直角的平行四边形叫做正方形。有一组邻边相等的矩形叫做正方形,有一个角是90度的菱形叫做正方形。

关键词: 正方形 内角 多少

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