Question

perimetru patrat-48cm.
Arie patrat=?
Afla aria

Answer 1

Perimetrul=48 cm
Perimetrul= 4•latura

4•latura=48
latura=48:4
latura=12

$aria = {latura}^{2} \\ aria = {12}^{2} \\ aria = 144$

Answer 2

P = 48 = 4L => L = 48 : 4 = 12 cm 

A = LxL = 12x12 = 144 cm^2