来源:今日热点网 | 2022-12-07 14:58:38 |
(资料图片仅供参考)
在生活中,很多人都不知道空间几何体的表面积计算是什么意思,其实他的意思是非常简单的,下面就是小编搜索到的空间几何体的表面积计算相关的一些知识,我们一起来学习下吧!
直棱柱:设棱柱高为h、底面多边形的周长为c。则得到直棱柱侧面面积S等于c乘以h。正棱锥:其侧面展开图是一些全等的等腰三角形,底面是正多边形。正棱锥的侧面积等于它的底面的周长和斜高乘积的一半,侧面积加底面面积即为表面积。正棱台:正棱台的侧面展开图是一些全等的等腰梯形,得到正n棱台的侧面积为n、底面边长以及斜高的乘积的二分之一。侧面积加底面面积即为表面积。球:球面面积等于它的大圆面积的四倍。
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