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    Question

    A figure is formed by revolving a rectangular sheet of

    dimensions 7cm ×4cm about its length. What is the volume of     the figure. thus formed. (in cm 3 )
    A 245 Correct Answer Incorrect Answer
    B 458 Correct Answer Incorrect Answer
    C 352 Correct Answer Incorrect Answer
    D 486 Correct Answer Incorrect Answer

    Solution

    Given – h= 7cm r = 4 cm Volume = πr2h = 22/7 ×4×4×7 =352cm3

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