tolong bantuin dong bagi yg pintar matematika nomor 5 aja

K = 2 ( p + l )
26 = 2 ( p + l )
26 ÷ 2 = p + l
13 = p + l
p = 12 cm
l = 1 cm
K = p + l = 12 + 1 = 13 cm
L = p × l
12 = p × l