1. Geometry

2. Some more definitions:

3. Geometry Some more definitions: Consecutive vertices:

4. Geometry Some more definitions: Consecutive vertices: Corners that are next to each other

5. Geometry Some more definitions: Consecutive vertices: Corners that are next to each other

6. Geometry Some more definitions: Consecutive vertices: Corners that are next to each other

7. Geometry Some more definitions: Consecutive vertices: Corners that are next to each other

8. Geometry Some more definitions: Consecutive angles:

9. Geometry Some more definitions: Consecutive angles: Angles that are next to each other

10. Geometry Some more definitions: Consecutive angles: Angles that are next to each other

11. Geometry Some more definitions: Consecutive angles: Angles that are next to each other

12. Geometry Some more definitions: Consecutive angles: Angles that are next to each other

13. Geometry Some more definitions: Opposite angles:

14. Geometry Some more definitions: Opposite angles: Only applies to four-sided figures

15. Geometry Some more definitions: Opposite angles: Only applies to four-sided figures

16. Geometry Some more definitions: Opposite sides:

17. Geometry Some more definitions: Opposite sides: Only applies to four-sided figures

18. Geometry Some more definitions: Opposite sides: Only applies to four-sided figures

19. Geometry Some more definitions: Diagonal: Segment whose endpoints are nonconsecutive vertices

20. Geometry Some more definitions: Diagonal: Segment whose endpoints are nonconsecutive vertices

21. Geometry Some more definitions: Diagonal: Segment whose endpoints are nonconsecutive vertices

22. Geometry Some more definitions: Diagonal: Segment whose endpoints are nonconsecutive vertices

23. Geometry Some more definitions: Diagonal: Segment whose endpoints are nonconsecutive vertices

24. Geometry Some more definitions: Convex polygon:

25. Geometry Some more definitions: Convex polygon: Diagonals are all interior of the polygon

26. Geometry Some more definitions: Concave polygon:

27. Geometry Some more definitions: Concave polygon: At least one diagonal contains a point exterior of the polygon

28. Geometry Some more definitions: Quadrilateral: A four-sided polygon

29. Geometry Some more definitions: Quadrilateral: A four-sided polygon Interior angles all add up to 360 o

30. Geometry Some more definitions: More definitions on page 228 Do problems on pages 230-231