Geometry Companion Book, Volume 2

8.1 Review Worksheet (continued)

8.1.2 Trigonometric Ratios Write each trigonometric ratio as a fraction and as a decimal rounded to the nearest hundredth. 14. cos D 15. tan D 16. tan F

17

F

D

8

15

E

17. cos F

18. sin F

19. sin D

Use a special right triangle to write each trigonometric ratio as a fraction. 20. tan 60 ° 21. sin 30º 22. cos 45 °

Use your calculator to find each trigonometric ratio. Round to the nearest hundredth. 23. tan 51 ° 24. sin 80º 25. cos 77 °

26. tan 14 °

27. sin 55 °

28. cos 48 °

Find each length. Round to the nearest hundredth. 29. PQ 30. AC

31. GH

P

B

G

19˚ 11 cm

19.2 in.

R

Q

11 ft

46°

C

A

34°

H

J

105

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