The surface area is 3.14 * 8 * 20+3.14 * (8/2) 2 * 2.

=502.4+3. 14* 16*2

=502.4+ 100.48

=602.88 square centimeters

Volume: 3. 14 * (8/2) 2 * 20

=3. 14* 16*20

= 1004.8 (cubic centimeter)

I hope I can help you and adopt it. I wish you progress in your study.