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    Question

    If the radius of a cylinder is 20 cm and its curved

    surface area is 660 cm2 then find the height of the cylinder?
    A 7 cm Correct Answer Incorrect Answer
    B 10.5 cm Correct Answer Incorrect Answer
    C 8.75 cm Correct Answer Incorrect Answer
    D 12.25 cm Correct Answer Incorrect Answer
    E 5.25 cm Correct Answer Incorrect Answer

    Solution

    According to the question Curved surface area of cylinder = 2πrh where the height of the cylinder = h cm and radius = r 660 = (2 x 22 x 20 x h)/7 h = 5.25 cm

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