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      Question

      The area of the smallest circle which contains a square

      of area 4 cm2 inside is
      A ╧А cm┬▓ Correct Answer Incorrect Answer
      B 2 ╧А cm┬▓ Correct Answer Incorrect Answer
      C 3 ╧А cm┬▓ Correct Answer Incorrect Answer
      D 4 ╧А cm┬▓ Correct Answer Incorrect Answer

      Solution

      Side of the square = тИЪ4 = 2 cm Diagonal of the square = 2 тИЪ2 The diameter of the circle = Diagonal of the square = 2тИЪ2 Radius of the circle = 2тИЪ2/2 = тИЪ2 тИ┤ Area of the circle = ╧А ├Ч (тИЪ 2)2 = 2╧А

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