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      Question

      What is the difference between (in m2) the

      area of a circular field of radius 21 metres and area of a rectangular piece of land having its dimensions as 18 metres × 20 metres?
      A 1026 Correct Answer Incorrect Answer
      B 1006 Correct Answer Incorrect Answer
      C 1056 Correct Answer Incorrect Answer
      D 1076 Correct Answer Incorrect Answer

      Solution

      Area of the circular field = π × radius2 = (22/7) × 21 × 21 = 1386 m2 Area of the rectangular piece of land = length × breadth = 18 × 20 = 360 m2 So, difference in area = 1386 – 360 = 1026 m2

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