Respuesta :

Answer:

area= 144ft^2

Step-by-step explanation:

width = x

length = 4x

perimeter = 2(4x+x)

60/2=5x

30=5x

x=30/5

x=6

width 6 feet

length 4(6)

= 24

area = length * width

=6*24

=144ft^2