Answer:
63ft
Step-by-step explanation:
The shape of the fence will be a square and the perimeter will be 252 ft.
A square has 4 sides of equal lengths, so we can state that 252 is the sum of 4 equal lengthed sides.
To find the length of one side, we divide 252 by two, giving us 63ft. Hence, each side of the fence will be 63ft.