Răspuns :
P= ( L + l) x 2 = > ( 15 + 8) x 2 = 23 x 2 = 46 cm
A = L x l = > 15 x 8 = 120 cm^2
A = L x l = > 15 x 8 = 120 cm^2
P➖= L*2+l*2 = 15 cm *2 + 8 cm *3 = 30+16= 46 cm
A➖= L*l = 15 cm "8 cm = 120 cm²
A➖= L*l = 15 cm "8 cm = 120 cm²