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      Question

      The radius of a cylinder is equal to the radius of a

      circle whose circumference is 88 units. If the height of the cylinder is 50% more than its radius, find the curved surface area of the cylinder.
      A 1048 unit² Correct Answer Incorrect Answer
      B 1848 unit² Correct Answer Incorrect Answer
      C 2840 unit² Correct Answer Incorrect Answer
      D 3048 unit² Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ, Let radius of the circle be = r. So, 2 * (22/7) * r = 88 Or, r = 88 * 7 / 44 r = 14 units Height of cylinder is 50% more than radius: Height = 14 * (100 + 50) / 100 = 14 * 150 / 100 = 21 units So, curved surface area of cylinder = 2 * (22/7) * 14 * 21 = 1848 unit²

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