做一个无盖的圆柱形铁皮水桶,底面直径6分米,高是8分米,至少需要铁皮多少平方分米?

2025-03-31 18:00:01
推荐回答(1个)
回答1:

3.14X3X3+3.14X6X8
=3.14X(9+48)
=3.14X57
=178.98平方分米