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    Question

    Calculate the perimeter of a circular field with an area

    of 3675 square meters, using an approximation of π as 3.
    A 160 m Correct Answer Incorrect Answer
    B 150 m Correct Answer Incorrect Answer
    C 200 m Correct Answer Incorrect Answer
    D 210 m Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    Let the radius of the circular field = r m So the area of the circular field = π × r2 = 3675 r2 = 1225, r = 35 So the circumference of the circular field = 2 × 3 × 35 = 210 m

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