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      Question

      The circumference of a circle is 22 cm and the length of

      the rectangle is 3 times the radius of the circle. Find the area (in cm2) of the rectangle, if the ratio of length and the breadth of the rectangle is 7:3, respectively.
      A 45.25 Correct Answer Incorrect Answer
      B 40.25 Correct Answer Incorrect Answer
      C 47.25 Correct Answer Incorrect Answer
      D 37.25 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Let the radius of the circle = β€˜r’ cm Circumference of the circle = 2Ο€r 22 = 2 Γ— (22/7) Γ— r r = 3.5 Radius of the circle = 3.5 cm Length of the rectangle = 3.5 Γ— 3 = 10.5 cm Breadth of the rectangle = (10.5/7) Γ— 3 = 4.5 cm Area of the rectangle = 4.5 Γ— 10.5 = 47.25 cm2

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