This activity is intended to supplement Trigonometry, Chapter 1, Lesson 7.
Problem 1 – Introduction to the Unit Circle
To the right, you will see a special circle known as the unit circle. It is centered at the origin and has a radius of one unit.
Check your results to Exercises 7–8 using your graphing calculator as shown to the right.
Check your results to Exercises 11–13 using your graphing calculator.
Problem 2 – Extending the Pattern
Identify the measure of the following angles.