Unit 6: Periodic Functions and Trigonometry
Lesson 2: Angles and the Unit Circle
1. Find the measure of the angle.
A. 145
B. 120
C. 90
D. 215
2. What is the measure of the angle in standard position?
A. 30
B. 330
C. -60
D. -30
3. Find the measure of an angle between 0 and 360 coterminal with an angle of -110 in standard position.
A. 250
B. 20
C. 110
D. 70
4. Find the cosine and sine of 210. Round your answers to the nearest hundredth if necessary.
A. -1, 0
B. -0.5, -0.87
C. -0.55, -0.95
D. -0.87, -0.5
5. Find the exact value of sin 120.
A. (*sqrt* 3)/2
B. -(*sqrt* 3)/2
C. 1/2
D. -1/2
Please help!!! I think #1 is A but that's all I got...