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What is the surface area of the solid right circular cylinder with a height of \(10\) above?

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Re: What is the surface area of the solid right circular cylinder with a height of \(10\) above?

by Brent@GMATPrepNow » Thu Oct 07, 2021 5:42 am
M7MBA wrote: ↑
Thu Oct 07, 2021 2:32 am
 Cylinder.png

What is the surface area of the solid right circular cylinder with a height of \(10\) above?

A. \(18\pi\)

B. \(32\pi\)

C. \(60\pi\)

D. \(78\pi\)

E. \(90\pi\)

Answer: D

Source: Veritas Prep
Given: radius = 3
Height = 10
Surface area of cylinder = 2πr² + 2πrh
= 2π(3²) + 2π(3)(10)
= 18π + 60π
= 78π

Answer: D
Brent Hanneson - Creator of GMATPrepNow.com
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