If total area is 169 square feet then we need to find 1/4 of that for each individual square. Each square is 42.25 feet square which would give a side length of 6.5 on each square.
The root 169 is 13, meaning that the length and width are both 13. Since there are 2 squares on each side, 13/2= 6.5 meaning the side length is 6.5 feet
