A box with an open-top has a square base and four sides of equal height.
The volume of the box is 539 ft^3.
The surface area is 357 ft^2
Let H is the height, L is the length and W is the width.
The volume is given by
[tex]\begin{gathered} V=L\cdot W\cdot H \\ 539=L\cdot W\cdot H \end{gathered}[/tex]The height is 4 ft greater than both the length and the width.
[tex]W=L=H-4[/tex]The surface area is given by
