Question

Mohon bantuannya
makasih

Answer 1

P= 1,4m
l = 8dm
t= 80cm
ubun = 20 x 20
penyelesaian
2 ( p x t ) + 2( L x t ) + ( p x L )
2 ( 140 x 80 ) + 2 ( 80 x 80 ) + ( 140 x 80 )
22 400 + 12800 + 11200 = 46400
L ubun = 400cm
46400/400 = 116
ubun yang di butuhkan = 116