Răspuns :
P = 2(L + l)
P = 2(128 + 89) = 2 * 217 = 434 cm
P = 2 * 128 + 2 * 89 = 256 + 178 = 434 cm
P = 2(128 + 89) = 2 * 217 = 434 cm
P = 2 * 128 + 2 * 89 = 256 + 178 = 434 cm