Section 2.1 Angles and Their Measure. Vertex Initial Side Terminal side Counterclockwise rotation Positive Angle.
Copyright © 2011 Pearson Education, Inc. Radian Measure, Arc Length, and Area Section 1.2 Angles and the Trigonometric Functions.
Can you draw a radius to each point of tangency? What do you notice about the radius in each picture?
Trigonometric Functions Chapter 5 TexPoint fonts used in EMF. Read the TexPoint manual before you delete this box.: AA A A AAA A.
Warm-up: Find the six trig ratios for a –240˚ angle.
