SOLUTION: the volume of a sphere is tripled. what is the increase in surface area if the the radius of the original ssphere is 50 cm?

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Question 1198681: the volume of a sphere is tripled. what is the increase in surface area if the the radius of the original ssphere is 50 cm?
Answer by Alan3354(69443) About Me  (Show Source):
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the volume of a sphere is tripled. what is the increase in surface area if the the radius of the original sphere is 50 cm?
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SA of the original sphere is 4pi*r^2 = 10000pi sq cms.
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3x the volume ---> root%283%2C3%29 times the radius.
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The larger SA is root%283%2C9%29 times the original SA.
The increase in SA is %28root%283%2C9%29+-+1%29%2A10000pi sq cms.
Increase = ~ 10800.838*pi sq cms