Răspunsuri

Cel mai inteligent răspuns!
2014-05-15T15:16:21+03:00
P=l+l+L+L
2l+2L=48 /:2
l+L=24
L=2l
2l+l=24
3l=24
l=8

L=2*8
L=16

Aria=L*l
Aria=16*8
Aria=128
3 3 3