SOLUTION: This problem refers to triangle ABC. If b = 4.1 m, c = 7.4 m, and A = 118°, find a. (Round your answer to one decimal place.)

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Question 1070656: This problem refers to triangle ABC.
If b = 4.1 m, c = 7.4 m, and A = 118°, find a. (Round your answer to one decimal place.)
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39623)   (Show Source): You can put this solution on YOUR website!
What is the question? Is the length, a, side opposite of angle at A, wanted? Use Law of Cosines. Law of Sines should then help to give you angle measures at B and C.
Answer by MathTherapy(10555)   (Show Source): You can put this solution on YOUR website!

This problem refers to triangle ABC.
If b = 4.1 m, c = 7.4 m, and A = 118°, find a. (Round your answer to one decimal place.)
Correct LAW to use: Law of Cosines, which leads to the following formula: 

The only UNKNOWN variable is "a," the one you need, and which is the side opposite ∠A.

Round to one (1) decimal place, as requested. 

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