mathematics – When are oblique triangles used in game development?

I’m working on a project that explains how trigonometry is used in video games, and I need to mention oblique triangles.

However, as far as I know, only right triangle diagrams are used in video games to perform calculations such as distance and angle.

Are right triangles always used, or are there some cases where oblique triangles are used, in which the Law of Sines and Law of Cosines are also used?