1. Special Right Triangles Moody Mathematics

2. Take a square… Moody Mathematics

3. Find its diagonal Here it is Moody Mathematics

4. Find its length x d x Moody Mathematics

5. x d x

6. Summarize the pattern: Moody Mathematics

7. 45 o -45 o -90 o leg leg leg Moody Mathematics

8. 45 o -45 o -90 o 6 6 6 Moody Mathematics

9. Practice:

10. 45 o -45 o -90 o 8 8 8 Moody Mathematics

11. 45 o -45 o -90 o 5 5 5 Moody Mathematics

12. 45 o -45 o -90 o 10 10 10 Moody Mathematics

13. 45 o -45 o -90 o 2 Moody Mathematics

14. 45 o -45 o -90 o Moody Mathematics

15. 45 o - 45 o -90 o Moody Mathematics

16. 45 o -45 o -90 o Moody Mathematics

17. Now Lets take an Equilateral Triangle… Moody Mathematics

18. … Find its Altitude Moody Mathematics

19. x x x a

20. x x a

21. Summarize the pattern: Moody Mathematics

22. 30 o -60 o -90 o Hypotenuse Longer leg Shorter Leg Moody Mathematics

23. 30 o -60 o -90 o Hyp. ½ Hyp. Moody Mathematics

24. 30 o -60 o -90 o Moody Mathematics

25. Practice:

26. 30 o -60 o -90 o Moody Mathematics

27. 30 o -60 o -90 o Moody Mathematics

28. 30 o -60 o -90 o Moody Mathematics

29. 30 o -60 o -90 o Moody Mathematics

30. 30 o -60 o -90 o Moody Mathematics

31. 30 o -60 o -90 o Moody Mathematics

32. 30 o -60 o -90 o Moody Mathematics

33. 30 o -60 o -90 o Moody Mathematics

34. 30 o -60 o -90 o Moody Mathematics

35. 30 o -60 o -90 o Moody Mathematics

36. Review Both Patterns: Moody Mathematics

37. 45 o -45 o -90 o leg leg leg Moody Mathematics

38. 30 o -60 o -90 o Hyp. ½ Hyp. Moody Mathematics

39. Mixed Practice: Moody Mathematics

42. 8 8 8

43. 10 10 10

54. 4 4

55. 2