Understanding Reference Angles
A reference angle is the acute angle formed between the terminal side of an angle and the x-axis. It's always the smallest angle you can make.
Steps
1. Determine the Quadrant: 170 degrees lies in the second quadrant (between 90 and 180 degrees).
2. Find the Difference: Subtract 170 degrees from 180 degrees (the angle that marks the boundary of the second quadrant).
180 degrees - 170 degrees = 10 degrees
Answer: The reference angle for 170 degrees is 10 degrees.
