SOLUTION: Use the Law of Cosines to determine the indicated angle θ. (Assume a = 68.01, b = 38.7, and c = 42.05. Round your answer to two decimal places.)
Algebra ->
Angles
-> SOLUTION: Use the Law of Cosines to determine the indicated angle θ. (Assume a = 68.01, b = 38.7, and c = 42.05. Round your answer to two decimal places.)
Log On
Question 1030219: Use the Law of Cosines to determine the indicated angle θ. (Assume a = 68.01, b = 38.7, and c = 42.05. Round your answer to two decimal places.) Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website! The law of cosines for calculating one angle of a triangle when the sides are known:
Angle C: c^2 = a^2+b^2-2(ab)cosC
Angle A: a^2 = b^2+c^2-2(bc)cosA
Angle B: b^2 = a^2+c^2-2(ac)cosB
``````````````````````````````````````````
Since I don't know which one the "indicated angle" is, plug in the numbers in the formula you need to get the angle that you need.
