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       Two angles are supplementary when their measures add up to 180 degrees.

       So what makes a supplementary angle supplementary​?

-> A supplementary angle is supplementary when it is 180° minus the measure of another angle.

     In an example, the supplementary angle of 94° is 86° because 180° - 94° = 86°

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Answer:

Two angles are called supplementary when their measures add up to 180 degrees.

Step-by-step explanation:

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