Question

1.要焊制一个1.331立方米的正方体封闭水箱,需要多大面积的铁皮?

Answer 1

1.

1.1*1.1*1.1

=1.21*1.1

=1.331立方米

1.1*1.1*6

=1.21*6

=7.26平方米

2.

5.8*2.9*3.3

=16.82*3.3

=55.506立方米

55.506÷0.064

=867.28125个

867+1=868个