1. sin P = 3/5, 0.60
2. cos P = 4/5, 0.80
3. tan P = 3/4, 0.75
4. sin Q = 4/5, 0.80
5. cos Q = 3/5, 0.60
6. sin R = 5/13, 0.38
7. cos R = 12/13, 0.92
8. tan R = 5/12, 0.42
9. sin S = 12/13, 0.92
10. cos S = 5/13, 0.38
11. sin T = 8/17, 0.47
12. cos T = 15/17, 0.88
13. tan T = 8/15, 0.53
14. sin X = 15/17, 0.88
15. cos X = 8/17, 0.47
16. tan X = 15/8, 1.88
17. sin Y = 9/41, 0.22
18. cos Y = 40/41, 0.98
19. sin 0° = 0.00
20. sin 30° = 0.50
21. sin 45° = 0.71
22. sin 60° = 0.87
23. sin 90° = 1.00
24. sin 180° = 0.00
25. sin 270° = -1.00
26. sin 360° = 0.00
27. cos 0° = 1.00
28. cos 30° = 0.87
29. cos 45° = 0.71
30. cos 60° = 0.50
31. cos 90° = 0.00
32. cos 180° = -1.00
33. cos 270° = 0.00
34. cos 360° = 1.00
35. tan 0° = 0.00
36. tan 30° = 0.58
37. tan 45° = 1.00
38. tan 60° = 1.73
39. tan 90° = undefined
40. tan 180° = 0.00
41. tan 270° = undefined
42. tan 360° = 0.00
43. Sine and cosine ratios are always less than 1 because they are defined as the ratio of a leg (opposite or adjacent) to the hypotenuse in a right triangle, and the hypotenuse is always the longest side. Tangent can be greater than 1 because it is the ratio of one leg to another leg, and one leg can be longer than the other.
Parent Tip: Review the logic above to help your child master the concept of trigonometric ratios worksheet answers.
