The Law of Cosines

The video tutorial explains the law of cosines, comparing it to the Pythagorean theorem. It details how the law of cosines can be used to solve triangles when given two sides and the included angle (side-angle-side) or all three sides (side-side-side). The tutorial provides step-by-step examples for solving these types of triangles and highlights the differences between the law of sines and the law of cosines. The video concludes with a comprehension check to reinforce learning.

What new insight or understanding did you gain from this video?