1. Trigonometry Revision

2. B AC 30 º hypotenuse adjacent opposite

3. B AC 30 º hypotenuse adjacent opposite Hypotenuse is opposite the right angle and is the longest side. Adjacent is next to the angle Opposite is across from the angle.

4. D 57 º E F adjacent hypotenuse opposite

5. 10 A x Has hypotenuse but is Not cosy

6. 10 A x

7. 2 x A No hypotenuse so it must be tan

8. 2 x A

9. 20 x A Has hypotenuse and is cosy

10. 20 x A

11. x A 33 No hypotenuse must be tan

12. x A 33

13. 9 m X 6 m

14. 9 m X 6 m Calculator:

15. 9 m X 6 m Calculator:

16. 7 cm 3 cm Y

17. 7 cm 3 cm Y

18. 7 m Z 5 m

19. 7 m Z 5 m

20. 68 º x 7 m

21. 68 º x 7 m

22. 15 m y 73 º

23. 15 m y 73 º

24. 9 m z 34 º

25. 9 m z 34 º

26. 40 º x 6 m

27. 40 º x 6 m

28. x 23 º

29. 6 m x 23 º

30. 30 º x 5 m

31. 30 º x 5 m

32. 25 cm 22 cm x

33. 25 cm 22 cm x

34. 10 m 1.2 m x

35. 10 m 1.2 m x

36. A B CD 40° 2 m 1.2 m Find length BC

37. A B CD 40° 2 m 1.2 m x First find x

38. A B CD 40° 2 m 1.2 m x Use Pythagoras’

39. A B CD 40° 2 m 1.2 m 1.6

40. A B CD 40° 2 m 1.2 m x