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    Question

    If the ratio of areas of two circle is 4:9, then the

    ratio of their circumferences will be:
    A 5:6 Correct Answer Incorrect Answer
    B 3:4 Correct Answer Incorrect Answer
    C 4:9 Correct Answer Incorrect Answer
    D 2:3 Correct Answer Incorrect Answer

    Solution

    Ratio of area of two circles = (Ratio of radius)2 = 4:9 Ratio of Circumference = Ratio of radius Hence, Ratio of Circumference = √(4/9) = 2:3

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