Question 242896
Do you know the formula for the surface area of a cylinder? It is {{{A = (2*Pi*r^2)+2*Pi*r*h}}}

Where A is the total surface area, r is the radius, and h is the height.

The total surface area is equal to the larger outside cylinder's side plus inside's cyclinder side plus 2 times the difference of each end. Algebraically:

{{{(2*Pi*4*5)+(2*Pi*3*5)+(2*Pi*4^2)-(2*Pi*3^2)}}}

This all equals 263.9 feet^2 (to 4 significant figues)

Does that make sense?