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27-08-2018
Mathematics

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Use the Law of sins to find the missing angle of the triangle. Find m angle B given that c=83, a=44, and m angle A = 31.

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27-08-2018

a / sin A = c / sin C

44 / sin 31 = 83 / sin C

sin C = 83 sin 31 / 44 = 0.9715

m < C = 76.3 degrees

m < B = 180 - 31 - 76.3 = 72.7 degrees answer

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