Respuesta :

deathstrike001
Since the formula for the perimeter of a square is 4s then
4s=28
s=7

Now the area of square is s^2=a
(7)^2=a
49=a

Answer: 49 feet squared

A square has four equal sides. It the perimeter is 28, then each side is 7 feet. The area is just the side length squared. 7 times 7 equals 49