天气预报 > 财经 > 圆柱圆锥的体积和表积公式
圆柱圆锥的体积和表积公式
更新时间: 2021-03-01 21:01:22  

1、圆柱体:S圆柱体侧面=2πr×h,上或下底的周长(2πr) 圆柱体的高(h)

2、S圆柱体的表面积=S圆柱体侧面+πr的平方×2,上底和下底的面积 (πr的平方×2)

3、圆锥体:S圆锥体表面积=S扇形+S下底面圆面积(扇形是圆锥侧面,圆锥高为圆锥尖端到下底面圆中心)

4、圆柱体:V圆柱体=底面积×高

5、圆锥体:V圆锥体=三分之一×底面积×高

关键词: 圆柱 圆锥 体积 公式

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