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    Question

    If the diameter of the cylinder is 14 cm and height of

    the cylinder is 2cm. Find the sum of the curved surface are and total surface area?
    A 484 cm² Correct Answer Incorrect Answer
    B 824 cm² Correct Answer Incorrect Answer
    C 916 cm² Correct Answer Incorrect Answer
    D 748 cm² Correct Answer Incorrect Answer

    Solution

    Diameter = 2r = 14 r = 14/2 = 7cm Curved surface area = 2πrh = 2 x 22/7 x 7 x 2 = 88 cm2 Curved surface area = 2πr(h + r) = 2 x 22/7 x 7x (2 + 7) = 396 cm2 Required answer = 88 + 396 = 484 cm2

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