Did you try to make a sketch yourself?Sam is designing a triangular piece for a metal sculpture.
He tells Martha that two of the sides of the piece are 40 inches and 15 inches,
and the angle opposite the 40-inch side measures 120į.
Martha decides to sketch the piece that Sam described.
How many different triangles can she sketch that match Samís description?
You'll find that, with an obtuse angle, there is only ONE triangle possible.
[By the way, we need the Law of Sines to solve this triangle.]