How to apply the law of cosines with no angles given

The video tutorial covers the process of solving triangle problems using the law of sines and the law of cosines. It begins with an introduction to triangle angles and the conditions under which these laws can be applied. The instructor explains how to find obtuse angles and the importance of identifying the correct angle to avoid multiple solutions. The tutorial includes detailed calculations for finding angles and sides, emphasizing the use of inverse trigonometric functions. The session concludes with a method to find the remaining angles using the known values.

What is the formula for the law of cosines?

How do you determine the other angles in a triangle after finding one angle?

What is the process to find the third angle in a triangle?