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Moderate

Surface Area of Cylinder When Height is Doubled

GMAT-IHZBJP

What is the surface area of this cylinder if the height is doubled?

A

$10\pi$$r$$+2\pi$$r^{2}$

B

$10\pi$$r$$+10\pi$$r^{2}$

C

$20\pi$$r$$+2\pi$$r^{2}$

D

$20\pi$$r$$+10\pi$$r^{2}$

E

$20\pi$$r$$+20\pi$$r^{2}$