Find the total surface area of a composite figure made from two cylinders connected at their bases. One cylinder has a radius 3 and height 3. The other cylinder has radius 18 and height 9.

Question

Find the total surface area of a composite figure made from two cylinders connected at their bases. One cylinder has a radius 3 and height 3. The other cylinder has radius 18 and height 9. Leave your answer in terms of

SA = _____ pi

Answer 1

formula for surface area of cylinder=2pi x r^2+2pi x r x h

(2pi x (3)^2+2pi x (3) x (3))+(2pi x (18)^2+2pi x (18) x (9))=1008pi or 3166.7