1. 11.1 Angles Measures in a Polygon

2. Sum of the angles in a Triangle 180° Quadrilateral 360° Pentagon 540°
Hexagon ?
How to find the Sum,
Number of sides minus two times 180°

3. Remember

4. Each angle of a Regular Polygon
Regular Polygons have all sides and angles equal.
Each angle would be

5. Solve for x
Non regular polygon

6. Solve for x

7. Interior and External Angles of Polygon
The External always add to 360°

8. Remember

9. How many sides?
If each interior angle of a regular polygon is 165°. The polygon had how many sides?
If you use the interior angle.

10. How many sides?
If each interior angle of a regular polygon is 165°. The polygon had how many sides?
If you use the external angle.

11. Solve for y

12. Solve for y

13. Solve for x Regular Hexagon

14. Solve for x Regular Hexagon

15. Homework