Raymond B. answered 05/11/23
Tutor
5
(2)
Math, microeconomics or criminal justice
L= 4 + 2w
A= 240 = Lw
= (4+2w)w = 4w + 2w^2 = 240
w^2 + 2w -120 = 0
(w+12)(w-10) = 0
w = 12 meters wide
L = 240/12 = 20 meters Long