Chapter 3. Trigonometry 101

Why Learn Trigonometry?

The Flash Coordinate System

Anatomy of a Triangle

The Pythagorean Theorem

The Heart of Trig

Vectors

Points to Remember

For those of you who don't remember this from school, trigonometry is the branch of mathematics that deals with the relationships between the sides and angles of triangles. In this chapter we're going to cover the basics of trigonometry, which should handle almost every need you'll have. However, if you would like to learn more about this subject, see Appendix E for book suggestions.