The volume of a cylinder is given below:
[tex]V=\pi r^2h[/tex]Here, r=7 feet and h=4 feet. So, the volume of the cylinder is:
[tex]\begin{gathered} V=\frac{22}{7}\times(7)^2\times4 \\ =22\times7\times4 \\ =22\times28 \\ =616 \end{gathered}[/tex]Thus, the volume of the cylinder is 616 square feet.