Ch10+by+dordorn

10.1
Tangent Rato - It's a tangent of <A or tan Ø. Tan Ø = opposite/adjacent. Can't do angel that is a right angle.

10.2
Sine Rato - Sin Ø = oppsite/hypotenuse. Cosine Rato - Cos Ø = agjecent/hypotenuse. (sinØ)² + (cosØ)² = 1

10.3
Angle of Rotation - how many degrees it is shown by Ø, on the the positve x-axis. Unit Circle - Center of it's origion and a radius of 1.