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9th Class Mathematics Related to Competitive Exam Question Bank Self Test-9

  • question_answer
    Which one of the following statements is false for formula?

    A)  I is the length of arc

    B)  r is the radius of circle

    C)  is an angle at the centre whose measure is in degree

    D) is an angle at the centre whose measure is in radian

    E)  None of these

    Correct Answer: C

    Solution :

       


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