28. Pythagoras & Right-Angled Trigonometry

28.1 Pythagoras’ Theorem
28.2 Finding a Missing Side Using Pythagoras
28.3 Introduction to SOHCAHTOA
28.4 Sine
28.5 Cosine
28.6 Tangent
28.7 Finding a Missing Side
28.8 Finding a Missing Angle
28.9 Choosing SIN, COS or TAN
28.10 Two-Dimensional Trigonometry Problems
28.11 Angles of Elevation
28.12 Angles of Depression
28.13 Bearings with Trigonometry