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    Question

    The perimeter of semicircle is 36 cm and the radius of

    the semicircle is equal to the height of a Cylinder whose volume is 198 cm 3 . then find the radius of that cylinder.
    A 2 cm Correct Answer Incorrect Answer
    B 3 cm Correct Answer Incorrect Answer
    C 8 cm Correct Answer Incorrect Answer
    D 4 cm Correct Answer Incorrect Answer

    Solution

    The perimeter of semicircle = 36 (π ×R) + 2R = 36 22/7 R + 2R = 36 R = 7 cm Hence height of cylinder = 7 cm

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