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# A spherical balloon has a volume of 972 cubic cm, what is the surface

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Joined: 29 Dec 2018
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A spherical balloon has a volume of 972 cubic cm, what is the surface  [#permalink]

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04 Aug 2019, 02:19
00:00

Difficulty:

15% (low)

Question Stats:

89% (02:06) correct 11% (01:34) wrong based on 19 sessions

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A spherical balloon has a volume of 972 $$\pi$$ cubic cm, what is the surface area of the balloon in sq. cm?

A) 324
B) 729
C) 243 $$\pi$$
D) 324 $$\pi$$
E) 729 $$\pi$$

Source: Bunuel & bb 's GMAT Club Math Book

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Joined: 15 Nov 2018
Posts: 2
Re: A spherical balloon has a volume of 972 cubic cm, what is the surface  [#permalink]

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04 Aug 2019, 02:40
4/3πr^3=972π
r=9
The surface area is 4πr^2
4×π×9^2=324π

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Re: A spherical balloon has a volume of 972 cubic cm, what is the surface   [#permalink] 04 Aug 2019, 02:40
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