Question 977008
Breadth = Length/2 + 20
Perimeter = 2 x length + 2 x Breadth
520ft = 2L + 2(L/2 + 20)
520ft = 2l + L + 40 (Multiplied out)
520ft = 3L + 40
520 - 40 = 3L
480 = 3L
Therefore Length = 160ft
Breadth = 100ft (160/2 + 20)
Hope this helps:-)