The Law of Sines and the Law of Cosines

We could use Law of Sines or Cosines to find the missing angles, but it is better to use the Law of Cosines since the arccosine function will distinguish between acute and obtuse angles. C = 180 – A – B. SSS. We know the three sides of the triangles. C = 180 – A – B . Example: Solve given a = 11, b = 5 and C = 20(. Solution: ................
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