Multiple Choice Questions on The radius of base and height of a cylinder are in the ratio 2 3 Find the total surface area of the ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The radius of base and height of a cylinder are in the ratio 2 3 Find the total surface area of the ...........

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    The radius of base and height of a cylinder are in the ratio 2 : 3. Find the total surface area of the cylinder if its volume is 12936 cm3.

    3080 cm2

    Correct Answer

    2680 cm2

    Incorrect Answer

    4940 cm2

    Incorrect Answer

    3280 cm2

    Incorrect Answer
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    Explanation:

    (22/7)*(2x)2*3x = 12936
    Solve, x = 7
    So radius = 7 cm, height = 21 cm
    Total surface area = 2*(22/7)*14*(21+14) = 3080 cm2

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