P = 136 m
L: l = 5 rest 2
L = 5x l +2 ;
P = 2xL +2x l =136
Inlocuim :
2x (5xl +2) +2xl =136
10xl +4 +2xl = 136
12xl = 136-4 = 132 m
l = 132:12
l = 11 m (latimea)
L = 5Xl +2 = 5x11 +2
L =55+2
L = 57m (lungimea )
ARIA :
A = L X l = 57 x 11
A = 627 mp (metri patrati)
