01.21.2019: One Lesson of Math - Angles in Standard Position in All Quadrants, Part 3

Today's soundtrack is Opeth: Sorceress, the third 70s-style progressive rock album in a row from the Swedish progressive metal masters. I really like this (relatively) new turn that the band has taken.

This afternoon, I'm doing the assignment portion of the lesson I've been learning about angles in standard position in all quadrants. Links to previous sections: Part 1, Part 2.

I learned today that when sketching an angle, we must draw an arrow showing which direction the angle goes. This shows whether the angle is negative.