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    Question

    The circumference of a circle is 66 cm and the length of

    the rectangle is 4 times the radius of the circle. Find the area (in cm2) of the rectangle, if the ratio of length and the breadth of the rectangle is 7:10, respectively.
    A 2520 Correct Answer Incorrect Answer
    B 2020 Correct Answer Incorrect Answer
    C 2500 Correct Answer Incorrect Answer
    D 2620 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the radius of the circle = тАШrтАЩ cm Circumference of the circle = 2╧Аr 66 = 2 ├Ч (22/7) ├Ч r r = 10.5 Radius of the circle = 10.5 cm Length of the rectangle = 10.5 ├Ч 4 = 42 cm Breadth of the rectangle = (42/7) ├Ч 10 = 60 cm Area of the rectangle = 60 ├Ч 42 = 2520 cm2

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