Question

What is the surface area of the cylinder in terms of pi the diagram is not drawn to scale radius of 9 and height of 19

Answer 1

504π

Explanation:

First, find LATERAL AREA 2πrh

r: 9 h: 19

LA= 2π (9*19)

LA = 2(171)π

LA = 342π

Next, use LA to find SURFACE AREA: 2πrh + 2πr^2.

SA = 342π + 2(9^2)π

SA = 342π + (2*81)π

SA = 342π + 162π Simplify.

SA = 504π