1. Polygons 1 What is the difference between concave and convex?

2. concave - convex - a polygon that has at least one diagonal on the outside. a polygon with all diagonals on the inside.

3. Exterior Angles Interior Exterior 60  1. The sum of the exterior angles is ____. 2. Each exterior angle in a triangle is _____.

4. MODEY=

6. Window

7. Number of sides: Number of triangles (only one vertex connected): Sum of the angle measures: Each interior angle: Each exterior angle: Sum of the exterior angles: Number of diagonals: Central angle:

12. Number of sides: Number of triangles (only one vertex connected): Sum of the angle measures: Each interior angle: Each exterior angle: Sum of the measures: Number of diagonals: Central angle:

14. 3 triangle3 1 180 60 120 360 0 120 6 hexagon 6 4 720 120 60 360 9 60 chart for polygons

15. follow up problems 1. 2. Find the value of x 80 77 x 89 105 70 4x 110 55