Respuesta :

Let, width = x
Length = 5x

It is given that, 5x * x = 405
5x² = 405
x² = 405 / 5
x = √81
x = 9
& 5x = 5(9) = 45

Perimeter = 2(l + w)
P = 2(45 + 9)
P = 2(54) = 108

In short, Your Answer would be 108 Yards

Hope this helps!