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Two angles are supplementary. The first angle measures 60°. What is the measurement of the second angle?

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3 votes
180-60=120. 120° is your answer.
User Laevand
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4 votes
Supplementary angles add up to 180° so subtract 60 from 180 and you get 120°. The measurement of the second angle is 120°

User Christian Ivicevic
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