Hey there!
[tex]\large\boxed{1600ft^2}[/tex]
Since all four sides of a square have the same length, to find the length of the sides you divide 160 by 4.
160 ÷ 4 = 40
So each side is 40 feet long.
To find the area, square the side. So multiply it by itself.
40² = 40 x 40 = 1600
The area is 1600 sq. ft.
Hope this helps!