10. Determine the exact values for coordinates (x,y) of the terminal point for a 315o angle of rotation on a unit circle.
11. A terminal point on a unit circle is (√3/2, ­1/2). What is the angle of rotation in standard position?
12. Determine the exact values for coordinates (x,y) of the terminal point for a 120o angle of rotation on a circle with radius 6.
10. Determine the exact values for coordinates (x,y) of the terminal point for a 315o angle of rotation on a unit circle.
11. A terminal point on a unit circle is (√3/2, ­1/2). What is the angle of rotation in standard position?
12. Determine the exact values for coordinates (x,y) of the terminal point for a 120o angle of rotation on a circle with radius 6.
In­Class Assignment (3 parts)
Part 1:
1. Label the diagram below with the following labels:
θ
α
P
initial arm
terminal arm
angle of rotation
reference angle
quadrants (1,2,3,4)
quandrant angles (0°,90°,180°,270°,360°)
2. If the angle of rotation in the diagram above is 230°, what is the reference angle?
3. Find one positive and one negative coterminal angle for 230°.
4. If the circle above was a unit circle, what would be the coordinates of point P?
5. If the radius on the circle above was 5, what would be the coordinates of point P?
Part 2:
Do practice questions 141,144,146,148 on the finding θ sheet.
Part 3:
Do #1,3&4 on special angles sheet