Question

What is the surface area of a cylinder with base radius 2 and height 9? Either enter an exact answer in terms of \pi or use 3.14, \piπpi and enter your answer as a decimal.

Answer 1

44π

Explanation:

The surface area of a cylinder is given by the formula ...

S = 2πr² +2πrh = 2πr(r+h)

For the given dimensions, the area is ...

S = 2π(2)(2 +9) = 44π

The surface area is 44π square units.