Respuesta :

Answer:

w = 9

l = 36

Step-by-step explanation:

P = 90

l = 4w

P=2(l+w)

90 = 2(4w+w)

90 = 10w

w = 9

90 = 2(l+9)

90 = 2l + 18

72 = 2l

l = 36