A polygon is any closed figure with three or more straight sides. "Closed" means that there are no gaping holes in it and that all sides connect together.
That's right, a circle is not a polygon. It doesn't have all the properties, and it's really hard to count the number of sides.
|Number of Sides||Number of Angles||Name|
|7||7||Septagon (or Heptagon)|
Polygons have a lot of important vocabulary terms that come with them. You will need to memorize these, but don't worry, they aren't too difficult.
You're probably familiar with these shapes
Which of the following look like regular polygons?
How many vertices does the following polygon have?
Which two sides form the height and base of the polygon?