# Solving Right Triangles

1. $\rhd$ Basic geometry  (12:10) Sal draws several right triangles and defines the trigonometric ratios for those triangles.
2. $\rhd$ Solving right triangles (for a side)  (7:04) A video example of finding an unknown side of a right triangle.
3. $\rhd$ Solving right triangles (for a side)  A written example of finding an unknown side of a right triangle.