Name _____________________________ Class ___________________Date ____________
Practice 13-3
Radian Measure
Write each measure in radians. Express your answer in terms of .
1. 45°
2. 90°
3. 30°
4. 150°
6. 240°
7. 270°
8. 300°
9. 360°
10. 40°
12. 110°
13. 160°
14. 200°
15. 220°
11. 80°
5. 180°
Write each measure in degrees. Round your answer to the nearest
degree, if necessary.
16. 
17. 2
18.
5
6
19.
3
4
20.
3
2
21.

6
22.
7
6
23.
11
6
24.

3
25.
4
3
26.
5
4
27.
7
4
28.
2
3
29.

9
30.
2
9
34.
7
radians
4
38.
2
radians
3
The measure  of an angle in standard position is given. Find the exact
values of cos  and sin  for each angle measure.
31.

radians
6
32.

radians
3
33. 
35.
5
radians
6
36.
4
radians
3
37.
3
radians
4
11
radians
6
Use each circle to find the length of the indicated arc. Round your answer
to the nearest tenth.
39.
40.
41.
42.
43.
44.
45. A pendulum swings through an angle of 1.8 radians. The distance the
tip of the pendulum travels is 32 in. How long is the pendulum?
46. A 0.8 m pendulum swings through an angle of 1.5 radians. What
distance does the tip of the pendulum travel?
Algebra 2
Name
___________________________________________
Homework Lesson 13.4-13.5 Sine/Cosine Curve
Mixture of Sine and Cosine. Write the equation.
1.
2.
3.
4.
Graph – watch for sine or cosine.
5. y = 4 sin x
6. y = 2 cos x
7. y = 2 sin 2x
8. y = -cos 2x
9. y = 3 cos x
10. Y = -2 sin 4x