Question 728332
Surface area is the area of the top and bottom base (48 + 48 = 96 square feet) plus the surface area of the cylinder's body (the lateral area).<P>
First make sure all units are the same.  Convert 12 yards into 36 feet.<P>
The lateral area of a cylinder is the circumference of the base x the height.<P>
Circumference of the base is the circumference of a circle which is 2 * pi * r<P>
Find radius using the formula for area {{{A = 48 = pi*r^2}}}<P>
Solve for r:  {{{48/pi = r^2}}} and {{{sqrt(48/pi) = r}}}<P>
So the lateral area is {{{2*pi*sqrt(48/pi) * 36}}} = approximately 884.1543<P>
And the surface area is {{{96 + 2*pi*sqrt(48/pi) * 36}}} = appox. 980.154
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