Question

How do you use the law of cosines or law of sines if you are given A = 75.4, b = 52, c = 52?

Answer 1

Solve triangle knowing A = 75.4, b = 52, and c = 52

Explanation:

Use the Law of Cosine: `a^2 = b^2 + c^2 - 2bccos A.`

`a^2 = 2704 + 2704 - 208.cos A = 5408 - 208(0.25) = 5356`

`a = 73.18`