Trigonometry
Master CSEC trigonometry — from the ratios of acute angles and solving right-angled triangles, through heights and distances, angles of elevation and depression, the sine and cosine rules, and bearings. Each lesson has worked examples, exam-style questions and practice.
11 lessons
Curriculum
Trigonometric Ratios in Right-Angled Triangles
- 📄Trigonometric Ratios (SOH CAH TOA)
- 📄Finding Sides Using Trigonometric Ratios
- 📄Finding Angles Using Inverse Ratios
Heights, Distances, Elevation and Depression
- 📄Angles of Elevation and Depression
- 📄Heights and Distances
The Sine and Cosine Rules
- 📄The Sine Rule
- 📄The Cosine Rule
- 📄Applications of the Sine and Cosine Rules
Bearings
- 📄Understanding and Measuring Bearings
- 📄Relative Position and Back Bearings
- 📄Solving Problems Involving Bearings