Răspuns :
a. P= 2(l+L) = 2 (16+4) = 40
b. A = L x l = 16 x4 = 64
c. A dreptunghi = A patrat = 64
A patrat = [tex] l^{2} [/tex] = 64 => l = 8
P patrat = 4 x l = 4x 8 = 32
b. A = L x l = 16 x4 = 64
c. A dreptunghi = A patrat = 64
A patrat = [tex] l^{2} [/tex] = 64 => l = 8
P patrat = 4 x l = 4x 8 = 32
a)P=2×+(16+4)=40 m.b)A=16×4=64m², c)Apatrat=64 m²,√64= 8 m latura.P=8×4=32 m