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圆的表面积怎么求啊
更新时间: 2020-10-29 00:00:00  

圆的表面积的计算公式:S=πr或S=πx(d/2)。表面积的意思是立体图形的所能触摸到的面积之和叫做它的表面积。立体图形的所占的空间大小叫做它的体积。

圆是指在一个平面内,一动点以一定点为中心,以一定长度为距离旋转一周所形成的封闭曲线。

关键词: 表面积 怎么

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