In this learning activity you'll evaluate the Sine, Cosine, and Tangent ratios of a right triangle.

After a brief review, the student solves five practical shop problems using right angle trigonometry.

In this learning activity you'll evaluate the six trig functions using a scientific calculator.

Learners read how to use the arctangent function to calculate the theta of an angle. The proper keystrokes are displayed.

This primer introduces the student to the correct method of using the arctangent function on a TI-86 calculator.