Trigonometry 30-60-90 Special Right Triangles 

This trigonometry series will show you how to solve for all unknown sides and angles in a triangle. This video explains how to solve 30-60-90 special right triangles using side length proportions.
1. Sum of Angles = 180
2. Pythagorean theorem
3. 45-45-90 Special Right Triangles
4. 30-60-90 Special Right Triangles
5. Sine, ArcSin functions
6. Cosine, ArcCos functions
7. Tangent, ArcTan functions
8. Law of Sines
9. Law of Cosines