Question

Find the surface area. Leave your answers in terms of π.

A. 80πcm²
B. 112πcm²
C. 210πcm²
D. 160πcm²

Answer 1

C

Explanation:

To get the curved surface area do 2πrh, so 2π(5)(16) = 160π.

Adding on the top and bottom circular faces by doing 2πr² we get 2π(5)² = 50π. Hence the total surface area is 210π.