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What quadrant are these angles in What is their reference angle?. 1. 17 . 2. 258. I. III. Determine a positive and negative coterminal angle. 3. 52 . 4. -36 . 412, -308. -396, 324. The Unit Circle. The Unit Circle. 90 °. (in degrees). 60 °. 120 °. 45 °. 135 °. 30 °.
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What quadrant are these angles in What is their reference angle? 1. 17 2. 258 I III Determine a positive and negative coterminal angle 3. 52 4. -36 412, -308 -396, 324
The Unit Circle 90° (in degrees) 60° 120° 45° 135° 30° 150° 180° 0° 360° 210° 330° 225° 315° 300° 240° 270°
Convert From Degrees to Radians Convert From Radians to Degrees
Convert From Degrees to Radians a) c) b) Convert From Radians to Degrees a) b)
Convert From Degrees to Radians 144 -20 -/9 4/5
Find two coterminal angles (one positive and one negative) for the given angle + 2 = 25/12 - 2 = -23/12 more than one correct answer
Find two coterminal angles (one positive and one negative) for the given angle + 2 = 8/3 - 2 = -4/3 more than one correct answer
What quadrant are these angles in? 1. 2. I III Determine a positive and negative coterminal angle 3. 4. 25/12, -23/12 8/3, -4/3
The Unit Circle (In Radians) 0 2
2 3 Homework: Review Special Right Triangles (45-45-90 and 30-60-90) On the blank unit circle, find the missing sides for the triangles formed by the different angles. Make that a coordinate for the end point of the terminal side of each angle. 2 1 1 1 STUDY YOUR UNIT CIRCLE…QUIZ NEXT TIME!!!
(-,+) (+,+) (-,-) (+,-) (0, -1)