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圆柱周长公式是什么

更新时间: 2020-11-06 00:00:00     

圆柱的周长=底面直径xππ的近似值为3.14,π是圆周率。

公式说明:π是圆周率,约等于3.14,D是圆的直径,R是圆的半径

举例:

1、圆的直径是6米,周长C=πD=3.14×6=18.84米

2、圆的半径是3米,周长C=2πr=2×3.14×3=18.84米

关键词: 圆柱 周长 公式 什么

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