Angle A and B are supplementary. I m∠A = 143°, find m∠B I don't understand the question.

Mathematics

1 answer:

Dominik [7]3 years ago

4 0

Answer:

b=37

Step-by-step explanation:

if the angles are supplementary then they will add up to equal 180.

to find b you just subtract 143 from 180 to get 37

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