solve for α in the oblique triangle ABC; AB = 30; AC = 15, and angle B = 20°
type out the two equations substituting the numbers from the diagram.
- First, type out the Law of Sines set of relationships.
- Next, type out the most appropriate version to use the Law of Cosines for this solution.
Write both equations and make a prediction of which method will be easier to use in finding a solution and why you think that is the case.