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    Question

    The circumference of the two circles is 110 cm and 330

    cm respectively. What is the difference between their radii?
    A 25m Correct Answer Incorrect Answer
    B 35m Correct Answer Incorrect Answer
    C 42m Correct Answer Incorrect Answer
    D 30m Correct Answer Incorrect Answer

    Solution

    2p (r1 тАУ r2) = 330 тАУ 110 ┬а = 220 ├Ч7)/22├Ч2 (r1 тАУ r2) = 35 cm

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