NAME_________________________________________DATE___________________
ALGEBRA2
TRIGONOMETRY (ANGLES)
MRS. BINASO
Write all answers on loose leaf. Show all work where applicable.
Name the quadrant in which each angle lies.
1. 48˚
2. 130˚
3. 356˚
5
3
6. -780˚
7.
8.
6
8
5. -240˚
4. -91˚
6
9.
7
Tell whether each of the following is a positive or negative number.
10. sin 30˚
11. cos 230˚
12. tan (-52˚)
13. sec 125˚
5
5
7
14. cot (-343˚)
15. sin
16. csc
17. cos
6
4
3
F
IJ
G
HK
F
IJ
G
H K
Find the reference angle of each of the following angles.
18. 240˚
19. 150˚
20. 315˚

11
22. -127˚
23.
24.
6
4
21. -193˚
3
25.
4
F
IJ
G
H K
Express as a function of a positive acute angle.
26. cos 140˚
27. sin 310˚
28. csc 190˚
30. cot 215˚
31. cos (-50˚)
32. sec (-160˚)
Find each value to four decimal places.
34. sin 18˚10’3’’
35. tan 26˚14’
37. csc 41˚26’48’’
38. cot 39˚15’52’’
F
IJ
G
H K
29. tan 350˚

33. sin
4
F
I
G
HJK
36. cos 62˚38’13’’
39. sec 54˚41’11’’
Find the value of θ in the interval 0˚ ≤ θ ≤ 90˚ to the nearest second.
40. cos θ = 0.5132 41. sin θ = 0.3291 42. tan θ = 1.7050 43. csc θ = 1.1284
Find all values of θ in the interval 0˚ ≤ θ ≤ 360˚ to the nearest degree.
44. sin θ = 0.9005
45. tan θ = -0.9438
46. cos θ = 0.2451