SOLUTION: In triangle ABC , Angle A = 127° b = 9 cm, c = 8.5 cm. The length of a is approximately: (If necessary, round your answer to the nearest tenth.)

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Question 453940: In triangle ABC ,
Angle A = 127°
b = 9 cm,
c = 8.5 cm.
The length of a is approximately: (If necessary, round your answer to the nearest tenth.)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Use the Cosine Law
a%5E2+=+b%5E2+%2B+c%5E2+-+2bc%2Acos%28127%29