一个无盖圆柱形水桶,底面半径10厘米,高24厘米,表面积是?容积是?
人气：232 ℃ 时间：2019-11-21 00:41:23
解答
3.14*10*10+3.14*10*2*24
=314+753.6
=1067.6（平方厘米）
3.14*10*10*24=7536(立方厘米）
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