Reference Angles
Presentation
•
Mathematics
•
9th - 12th Grade
•
Hard
Joseph Anderson
FREE Resource
4 Slides • 5 Questions
1
Reference Angle
2
Reference Angle
Measure of Terminal side to closest x axis
Distance to x axis
MUST be < 90 degree
MUST be Positive
3
Finding Reference Angles
The blue portion of graph is the original angle
The red portion is reference angle
4
Finding Reference angle by Quadrant
Quadrant 1 - itself
Quadrant 2 - 180 Degrees minus the angle
Quadrant 3 - The angle minus 180 degrees
Quadrant 4 - 360 minus the angle
5
Multiple Choice
What is the reference angle?
6
Multiple Choice
What is the reference angle?
7
Multiple Choice
8
Multiple Choice
9
Multiple Choice
Reference Angle
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