The volume of a sphere is given by 130977 cm3. Its surface area (in cm2) is:
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Correct answer: B
Explanation
The correct answer is option 2 i.e. 12474.
The volume of a sphere is given by 130977 cm3.
The volume of a sphere = 4/3πr3
The surface area of a sphere = 4πr²
⇒ 4/3 × 22/7 × r3 = 130977
⇒ r3 = 31255.875
⇒ r = 31.5 cm
Surface area of the sphere = 4 × (22/7) × 31.5 × 31.5 = 12474 cm2