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    Question

    One chord of a circle is given as 21.5 cm. Then the

    radius (r) of the circle must be:
    A 15.45 Correct Answer Incorrect Answer
    B 10.75 Correct Answer Incorrect Answer
    C 12.25 Correct Answer Incorrect Answer
    D 11.50 Correct Answer Incorrect Answer

    Solution

    A cord of circle = 2r 21.5 = 2r r = 21.5/2 =10.75cm

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