Răspuns :
arie patrat=latura² perimetrul=4 * l=> P=4 * l
A=l ² = 64 => l² = 64=> l √64=>l=8
P= 8*4=> P = 32 cm
A=l ² = 64 => l² = 64=> l √64=>l=8
P= 8*4=> P = 32 cm