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If two angles are supplementary and one of them is 30°, what is the measurement of the second angle? A. 150° B. 180° C. 60° D. 90°
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If two angles are supplementary and one of them is 30°, what is the measurement of the second angle? A. 150° B. 180° C. 60° D. 90°

User Sketchthat
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A. 150, because supplementary angles are angles that add up to 180 degrees.
User Vlad Omelyanchuk
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