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10th Class Mathematics Areas Related to Circles Question Bank Area of Circle

  • question_answer
    If the perimeter of a semi-circular protractor is 36 cm, what is its diameter?

    A)  11 cm                         

    B)  13 cm         

    C)  15 cm                         

    D)  14 cm

    Correct Answer: D

    Solution :

    (d): Perimeter of a semi-circular protractor \[=\pi r+2r\] \[=r(\pi +2)cm\]


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