Răspuns:
Salut !
Formule necesare rezolvarii :
A = l²
P = 4×l
l = latura
a) l = 6 cm
A = (6cm)² = 6cm×6cm = 36 cm²
P = 4×6cm = 24 cm
b) l = 5 dm
A = (5dm)² = 5dm×5dm = 25 dm²
P = 4×5dm = 20 dm
c) l = 9 m
A = (9m)² = 9m×9m = 81 m²
P = 4×9m = 36 m
Bafta !
