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    Question

    The measure of an angle is one-third of its

    supplementary angle. Find its measure.
    A 60° Correct Answer Incorrect Answer
    B 30° Correct Answer Incorrect Answer
    C 45° Correct Answer Incorrect Answer
    D 90° Correct Answer Incorrect Answer

    Solution

    Let the angle =x Supplementary angle =180°-x ATQ- x =(180°-x)/3 3x =180°-x 4x =180° x=45°

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