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      Question

      A right triangle ABC with sides 9 cm ,12cm and 15cm is

      revolved about the side 12 cm. What is the volume of the solid so obtained? (in cm 3 )
      A 343Ï€ Correct Answer Incorrect Answer
      B 324Ï€ Correct Answer Incorrect Answer
      C 175Ï€ Correct Answer Incorrect Answer
      D 225Ï€ Correct Answer Incorrect Answer

      Solution

      R = 9cm h= 12cm volume of the cone = 1/3 πr2 h = 1/3 π ×81×12 = 324π cm3

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