lexidonoghue122 lexidonoghue122

21-05-2018
Mathematics

contestada

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

Respuesta :

netlarue98 netlarue98

14-05-2022

Answer:

504π

Step-by-step 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

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