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    Question

    Given that the surface area of a sphere is 201.06 cm┬▓,

    calculate its volume.
    A 162.19 cm┬│ Correct Answer Incorrect Answer
    B 268.19 cm┬│ Correct Answer Incorrect Answer
    C 285.48 cm┬│ Correct Answer Incorrect Answer
    D 321.11 cm┬│ Correct Answer Incorrect Answer

    Solution

    ATQ,

    Surface area of sphere = 4 ├Ч ╧А ├Ч radius┬▓

    So, 4 ├Ч (22/7) ├Ч radius┬▓ = 201.06

    Or, radius┬▓ = 16.03

    Or, radius = ┬▒ 4.0

    But radius cannot be negative. So, radius = 4.0 cm

    Volume of sphere = (4/3) ├Ч ╧А ├Ч radius┬│

    = (4/3) ├Ч (22/7) ├Ч 4.0┬│

    = 268.19 cm┬│

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