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10th Class Mathematics Areas Related to Circles Question Bank MCQs - Areas Related to Circles

  • question_answer
    A wire is in the shape of a circle of radius\[\text{42 cm}\]. It is bent into a square. The side of the square is:

    A) \[\text{11 cm}\]

    B) \[\text{22}\,\text{cm}\]

    C) \[33\,\text{cm}\]

    D) \[66\,\text{cm}\]

    Correct Answer: D

    Solution :

    [d] Perimeter of square= Circumference of circle
    \[=2\pi r=2\times \frac{22}{7}\times 42=264\]
    \[\therefore \]  Side of the square \[=\frac{264}{4}=66cm\]


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