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82问答网 > 一个圆柱，底面直径是8cm，高20cm，它的表面积是______，体积是______

一个圆柱，底面直径是8cm，高20cm，它的表面积是，体积是

2025-03-25 13:05:08

推荐回答（1个）

回答1：

表面积是：
3.14×(

8

2

)2×2+3.14×8×20，
=100.48+502.4，
=602.88（平方厘米）；
体积是：3.14×(

8

2

)2×20=1004.8（立方厘米）；
答：它的表面积是602.88平方厘米，体积是1004.8立方厘米．
故答案为：602.88平方厘米；1004.8立方厘米．

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