Naming the Sides of a Right-Angled Triangle

In this tutorial I show you how to name the sides of a right-angled triangle in preparation for using trigonometry to find lengths and angles in right-angled triangles.

Trigonometry - Right Angled Triangles - Naming the Sides | ExamSolutions - youtube Video

Trig Ratios: sinθ, cosθ and tanθ

In this tutorial I show you the trigonometric ratios sinθ, cosθ and tanθ and easy ways to remember them.

Trigonometry : Sine, Cosine, Tangent (SOHCAHTOA) ratios explained - youtube Video