1. Right Triangle Trigonometry Sine, Cosine, Tangent

2. In a right triangle, ABC, the ratio of the length of the leg opposite A to the length of the leg adjacent to A is constant, no matter what lengths are chosen for the sides of the triangles. This trigonometric ratio is called the tangent ratio. tangent of A = ORtan A = length of leg opposite <A length of leg adjacent to <A opposite adjacent

3. The sine and cosine ratios involve one leg and the hypotenuse.

8. Videos Sine and Cosine Tangent Practice Kuta Software – Solving Right Triangles