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    Question

    The perimeter of a minor sector of a circle of radius 4

    units subtending an angle of 45° is:
    A 4 − π units Correct Answer Incorrect Answer
    B 8 − π units Correct Answer Incorrect Answer
    C 8 + π units Correct Answer Incorrect Answer
    D 4 + π units Correct Answer Incorrect Answer

    Solution

    ATQ,

    Perimeter of minor sector = arc length + 2 × radius

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