Right Triangle Trigonometry

What you'll learn

1. Define trigonometric functions as ratios of sides in a right triangle
2. Use SOH-CAH-TOA to evaluate trigonometric functions given side lengths
3. Find exact values for trigonometric functions of 30°, 45°, and 60° using special right triangles
4. Use cofunction identities for complementary angles
5. Apply right triangle trigonometry to solve real-world problems (angles of elevation and depression)

Prerequisites

• Unit Circle: Sine and Cosine Functions
• The Other Trigonometric Functions