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82问答网 > 圆柱体高是0.42米直径是0.82米能装多少升水

圆柱体高是0.42米直径是0.82米能装多少升水

2025-03-25 19:37:03

推荐回答（3个）

回答1：

圆柱体的面积公式是，：底面积×高
底面积的公式是：πR²
R＝0.82÷2＝0.41
所以圆柱体的面积是：3.14×0.41²×0.42
3.14×0.1681×0.42≈0.22㎡
所以可以装水0.22升

回答2：

回答体积V=π/4 水的密度p=1000kg/m3 质量m=Vp=250π 能装250π公斤的水

回答3：

半径 0.82÷2=0.41米
装水 0.41x0.41x3.14x0.42≈0.22169立方米=221.69升
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