What is the curved surface area of the right circular cylinder

    I.Area of the base of the cylinder is 616 cm2

    II.Volume of the cylinder is 9240 cm2,

  • If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.
  • If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.
  • If the data either in statement I alone or in statement II alone are sufficient to answer the question.
  • If the data given in both statements I and II together are not sufficient to answer the question.
  • If the data in both statements I and II together are necessary to answer the question.
  • Explanation:

    I. Given,

    πr2= 616 cm2

    22/7×r2=616

    r2=616×7/22

    r=14cm

    II. Given, πr2h=9240

    22/7×14×14×h = 9240

    h = 420/28

    h = 15 cm

    Now, curved surface area of the cylinder = 2πrh

    = 2×22/7×14×15 = 1320 cm2

    Hence, the data in both statement I and II together are necessary to answer the question.


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What is the curved surface area of the right circular cylinder I.Area of the base of the cylinder i
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