Trigonometry is a branch of mathematics older than Calculus and Algebra combined. Trigonometry explores the relationship between angles and sides of triangles in a way that has powerful, and still relevant today, consequences and applications.

The resources published here are designed to help students really understand Trigonometry. Use the navigation tabs below to move through the materials and resources.

- Trigonometry
- Basics
- Special Right Triangles
- Unit Circle
- Solving Right Triangles
- Reciprocal Functions
- Radians
- Graphing Sine Cosine and Tangent
- Graphing Trig Functions Part 2
- Transformations of Trig Functions
- Law of Sines
- Law of Cosines
- Sine v Cosine Rule
- Area of Non-Right Triangle
- 3D Trigonometry and Applications
- Bearings

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- Trigonometry
- Basics
- Special Right Triangles
- Unit Circle
- Solving Right Triangles
- Reciprocal Functions
- Radians
- Graphing Sine Cosine and Tangent
- Graphing Trig Functions Part 2
- Transformations of Trig Functions
- Law of Sines
- Law of Cosines
- Sine v Cosine Rule
- Area of Non-Right Triangle
- 3D Trigonometry and Applications
- Bearings