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圆柱体的面积
更新时间: 2021-05-09 23:01:08  

1、圆柱的表面积=侧面积+两个底面积=2πrh+2πr^2

2、单位:平方厘米、平方米、平方分米。

3、圆柱(circular cylinder)是由以矩形的一条边所在直线为旋转轴,其余三边绕该旋转轴旋转一周而形成的几何体。它有2个大小相同、相互平行的圆形底面和1个曲面侧面。其侧面展开是矩形。

关键词: 圆柱体 面积

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