优质解答
S长=(ah+bh)x2+ab-11.4
=(8x3+6x3)x2+8x6-11.4
=(24+18)x2=8x6-11.4
=42x2+48-11.4
=84+48-11.4
=156-11.4
=120.6(平方米)
120.6x4=482(元)
S长=(ah+bh)x2+ab-11.4
=(8x3+6x3)x2+8x6-11.4
=(24+18)x2=8x6-11.4
=42x2+48-11.4
=84+48-11.4
=156-11.4
=120.6(平方米)
120.6x4=482(元)