The surface area of a cylinder is the area of the top and bottom circle and the side of the cylinder, which is really a rectangle with the circumference of the circle for the length and x for the width.
So the formula is [tex]2 \pi rh+2 \pi r^2[/tex]
Plug in r and x into the equation;
[tex]2* \pi *8*8 +2* \pi *8^{2} [/tex]
[tex]128 \pi +128 \pi
[/tex]
[tex]256 \pi [/tex]
which is about 804.25 square units since it is an area.
Hope this helps.
