not sure if this helps but if
I've been using Brightstorm recently to prepare for the next lesson, it's great but occasionally you run into some questions and I don't believe they get answered any time soon.
I'm watching this video in particular and I am stuck with the second solution for
Solving Trigonometric Equations (Video)
If (pi) radians is equal to 180 degrees and all three angles of all three triangles is equal to 180 degrees, why isn't the supplement angle ?
That is the result he also got using (pi) - (theta). However, for me, it visual doesn't make sense. The angle of the center triangle must (in my eyes at least) (pi) - (2theta). Is the supplementary angle different?
Edit: Looking at again, it looks like the second solution includes the first angle as well which would make sense. Now I don't understand the supplement angle. Checking Google as of now...