How to use law of cosines to find the missing angles of a triangle given SSS

The video tutorial explains how to find missing angles in a triangle when only side lengths are given. It begins by discussing why the law of sines cannot be used due to the lack of angle information and introduces the law of cosines as a solution. The tutorial provides a detailed walkthrough of calculating the largest angle first using the law of cosines, followed by using the law of sines to find the remaining angles. The importance of identifying the largest angle first is emphasized to ensure the other angles are acute, simplifying the process.

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

Evaluate responses using AI:

OFF