Using vectors and trigonometry to find the true speed and direction of a boat

Evaluating all six trigonometric functions for a right triangle

Evaluating trigonometric functions given a point on the terminal side of an angle

Evaluating trigonometric functions given a point on the terminal side of an angle

Finding trigonometric functions given information about the angle

Using double angle formulas to evaluate trigonometric functions

Explaining the Pythagorean Theorem and using it to find a missing side in a right triangle

Explaining the special right triangles and the relationships between their sides

Finding the values of all six trigonometric functions of an angle given a right triangle