1. Geometry 5 Level 1

2. Interior angles in a triangle

3. Interior angles in a quadrilateral

4. Interior angles in a pentagon

6. Interior angles in a hexagon

7. General rule Sum of interior angles = (number of sides - 2) x 180

8. Exterior angles = 360 degrees

9. Equilateral triangle

10. Equilateral triangle. All angles are the same.

11. Exterior angles = 360 degrees 120 60

12. Angles on a line sum to 180 120 60

13. A square is a regular quadrilateral 90

14. Interior angles are all 90 90

15. Exterior angles are all 90 and add up to 360 90

16. Regular pentagon

17. Exterior angles add up to 360

20. Interior angles are on a line with exterior angles

22. Find the interior and exterior angles of a regular hexagon.

23. Exterior angles.

24. Interior angles.

25. How many sides does a regular polygon have if the exterior angles are 45 degrees?

27. How many sides does a regular polygon have if the interior angles are 144 degrees?

28. Exterior angle Number of sides

29. Find all the angles