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Angle A and B are supplementary. If m∠A = 143°, find m∠B.
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Angle A and B are supplementary. If m∠A = 143°, find m∠B.

User Max Tuzenko
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1 Answer

12 votes
Since angle a is 143° you’d subtract 143 by 180 because a supplementary angle is 180° which would give you 37° for angle b
Answer: 37°
User Dicemaster
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