Answer :
Volume of a cylinder is given as;
[tex]V=\pi\cdot r^2h[/tex]Where height h is 13ft, while the diameter d is 10ft
But radius = diameter/2
radius = 10ft/2
radius = 5ft
Then;
[tex]\begin{gathered} V=\frac{22}{7}\cdot5^2\cdot13 \\ V=\frac{22}{7}\cdot25\cdot13 \\ V=1021.43ft^3 \end{gathered}[/tex]