Answer:
[tex]SA=703.36\ ft^2[/tex]
Step-by-step explanation:
The picture of the question in the attached figure
we know that
The surface area of a cylinder is given by the formula
[tex]SA=2(\pi r^{2})+2\pi rh[/tex]
simplify
[tex]SA=2\pi r(r+h)[/tex]
we have
[tex]h=9\ ft\\r=7\ ft[/tex]
assume
[tex]\pi=3.14[/tex]
substitute
[tex]SA=2(3.14)(7)(7+9)=703.36\ ft^2[/tex]
