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    The measure of an angle is one half of its supplementary angle. Find its measure.
    Question

    The measure of an angle is one half of its supplementary angle. Find its measure.

    A.

    30°

    B.

    90°

    C.

    60°

    D.

    120°

    Correct option is C

    Let one of the angles be x
    Then its supplementary angle be 180 – x
    ATQ
    x = ½ (180 – x)
    2x = 180 – x
    3x = 180
    x = 60

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