圆柱体体积怎么算-天气预报

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圆柱体体积怎么算

更新时间： 2021-06-22 04:47:55

1、圆柱的体积公式是底面积乘高（hπr^2(说明：r是圆半径，h是高)。首先求出求出半径：8/2=4（cm），然后求出底面积：4*4*3.14=50.24（cm*cm）。体积：v=4*4*3.14*180=?9043.2(cm^3)（4*4*3.14是求出底面积）

2、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。

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