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58问答库 > 一↑圆柱直径是0.6米高是1.8米,需要多少方混.凝土？

一↑圆柱直径是0.6米高是1.8米,需要多少方混.凝土？

2025-04-07 09:23:13

推荐回答（2个）

回答（1）：

圆柱直径是0.6米高是1.8米，其体积是π*0.6²*1.8/4=0.5089立方米

回答（2）：

圆柱体的体积等于底面积乘以高。此圆柱体的直径为0.6米，那么底面积等于0.3乘以0.3乘以3.14约等于0.263平方米，又∵它的高为1.8米。∴需要的混凝土就是以圆柱体的体积为:0.263乘以1.8约等于0.51米方米。即:V=rⅹrⅹπⅹh=0.3ⅹ0.3ⅹ3.14ⅹ1.8≈0.51(立方米)
答:需要0.51立方米混凝土。

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