SOLUTION: Find B for triangle ABC if a = 13.2 yards, b = 17.7 yards, and c = 5.50 yards.

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Question 1070832: Find B for triangle ABC if a = 13.2 yards, b = 17.7 yards, and c = 5.50 yards.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the law of cosines,
b%5E2=a%5E2%2Bc%5E2-2ac%2Acos%28B%29
cos%28B%29=%28b%5E2-a%5E2-c%5E2%29%2F%282ac%29
cos%28B%29=%2817.7%5E2-13.2%5E2-5.5%5E2%29%2F%282%2813.2%29%285.5%29%29