3.14xC(7÷2)x2+3.14x7x8怎么算?

2024-12-15 20:46:48
推荐回答(1个)
回答1:

3.14x(7÷2)x2+3.14x7x8
=3.14×7+3.14×56
=3.14×(7+56)
=3.14×63
=197.82(cm²)