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    Question

    The radius of the base of a solid

    right circular cylinder is 7 cm, and its height is four times the radius of the base. Determine the total surface area (in cm┬▓) of the cylinder.
    A 1220 cm┬▓ Correct Answer Incorrect Answer
    B 1250 cm┬▓ Correct Answer Incorrect Answer
    C 1540 cm┬▓ Correct Answer Incorrect Answer
    D 1320 cm┬▓ Correct Answer Incorrect Answer

    Solution

    ATQ, Radius of the cylinder = 7 cm So, height of the cylinder = (4 ├Ч 7) = 28 cm Total surface area of the cylinder = 2 ├Ч (22/7) ├Ч 7 ├Ч (7 + 28) = 1540 cm2

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