1. TWO SIDES-ANGLE AND PERIMETER-RATIO
TRIANGLES
LENGTH OF SIDES,
HEIGHT-SIDE-ANGLE,
TWO SIDES-ANGLE AND PERIMETER-RATIO

2. TRIANGLES TYPES OF TRIANGLES:
DEFINITION: A plane figure bounded by three straight sides.
TYPES OF TRIANGLES:
SCALENE - three unequal sides and angles.
ISOSCELES - two equal sides and angles.
EQUILATERAL - three equal sides and angles.
RIGHT ANGLE - a 90° angle and a hypotenuse.

3. Roof trusses

4. LENGTH OF SIDES

5. LENGTH OF SIDES

6. LENGTH OF SIDES

7. LENGTH OF SIDES

8. LENGTH OF SIDES

9. HEIGHT-SIDE-ANGLE

10. HEIGHT-SIDE-ANGLE

11. HEIGHT-SIDE-ANGLE

12. HEIGHT-SIDE-ANGLE

13. HEIGHT-SIDE-ANGLE

14. HEIGHT-SIDE-ANGLE

15. HEIGHT-SIDE-ANGLE

16. TWO SIDES-ANGLE

17. TWO SIDES-ANGLE

18. TWO SIDES-ANGLE

19. TWO SIDES-ANGLE

20. TWO SIDES-ANGLE

21. TWO SIDES-ANGLE

22. TWO SIDES-ANGLE

23. TWO SIDES-ANGLE

24. TWO SIDES-ANGLE

25. PERIMETER-RATIO

26. PERIMETER-RATIO

27. PERIMETER-RATIO

28. PERIMETER-RATIO

29. PERIMETER-RATIO

30. PERIMETER-RATIO

31. PERIMETER-RATIO

32. PERIMETER-RATIO

33. PERIMETER-RATIO

34. PERIMETER-RATIO

35. PERIMETER-RATIO