The Unit Circle: Angles
View the Lesson | MATHguide homepage Updated June 21st, 2023

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Converson Factors
Problem:If sin θ = -1/2, use the unit circle and mark all of its solutions.
Solution:
Check all solutions.
0°
30° 45° 60° 90°
120° 135° 150° 180°
210° 225° 240° 270°
300° 315° 330° 360°