1. Class Opener 1 – 18 – 12:
The diagonals of a quadrilateral are perpendicular bisectors of each other. What is the name that best describes the quadrilateral?

2. Regular Polygons
In your own words define:
Regular Polygon

3. Label the figure if it regular.
Regular Polygon
A polygon with all sides and angles equal
Label the figure if it regular.

4. Is the shape a regular polygon?

5. Is the shape a regular polygon?

6. Identify & Draw
5 sides
6 sides
7 sides
8 sides
9 sides
10 sides
11 sides
12 sides
For each give the proper name and draw its regular shape and an irregular shape.