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    Question

    Find the curved surface area of a right circular cylinder

    whose radius is 14 cm and volume is 6,160 cm³. (Use π = 22/7)
    A 880 cm² Correct Answer Incorrect Answer
    B 745 cm² Correct Answer Incorrect Answer
    C 952 cm² Correct Answer Incorrect Answer
    D 825 cm² Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Volume of cylinder = π × radius² × height

    So, (22/7) × 14² × height = 6,160

    Or, (22/7) × 196 × height = 6,160

    Or, 616 × height = 6,160

    Or, height = 10 cm

    Curved surface area of cylinder = 2 × π × radius × height

    = 2 × (22/7) × 14 × 10

    = 880 cm²

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