Area of a rectangle formula l × w 6.5 is our width you already know but 53.3 isn't the length so really you are trying to solve for l, so l × 6.5 = 53.3 when you get that answer you should get 8.2
Now .. you already have the width and the length so you hook in 6.5(w) + 6.5(w)+ 8.2 (l)+ 8.2(l) 6.5 + 6.5 gives you 13 and 8.2 + 8.2 gives you 16.4 Adding both up you get the final answer/ perimeter 29.4 inches
