Answer:
Each side is 1/13 miles long
Explanation:
The area of a square is A=s^2 where s is the side length of the square. Remember that a square has all of its sides equal in length to each other. So since we already have the area which is A=1/169mi^2, then we just take the square root of it to get s=1/13. So each side will be 1/13 miles long