The volume of a sphere is 38808cu.cm. The curved surface area of the sphere (in cm2) is:
A
5544
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B
1386
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C
8316
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D
4158
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Solution
The correct option is A5544 Given, volume of sphere =38808cu.cm Volume of a sphere of radius 'r' =43πr3 ∴43×227×r3=38808cm3 r3=9261 ∴r=21cm Surface area of a sphere of radius 'r' =4πr2=4×227×21×21=5544cm2