Answer:
87 yards
Explanation:
Recall that the side lengths of a square are equal to each other, so the perimeter is 4x (where x is the length of each side).
So, since the perimeter of the square field is 348 yards, just divide 348 by 4 to get 87.
So, 87 yards is the length of each side.
I hope that made sense. Feel free to let me know if you need anymore assistance.