Properties+of+Polygons

= =

__**Types:**__

====** Regular ** - all angles must be equal and all sides must be the same length. Regular polygons are both equiangular and equilateral. ==== 

** Equilateral **- all sides are the same length.

 * Convex ****  -  ** Not caving in at any times
 * Concave ** - Caving in

=__Polygons Parts__=

** Side ** - one of the line segments that make up the polygon. ** Vertex ** - point where two sides meet. Two or more of these points are called vertices. ** Diagonal ** - a line connecting two vertices that isn't a side. ** Interior Angle ** - Angle formed by two adjacent sides inside the polygon. ** Exterior Angle ** - Angle formed by two adjacent sides outside the polygon

Names and Sides: __**SIDES / NAME**__ 3 / Triangle 4 / Quadrilateral 5 / Pentagon 6 / Hexagon 7 / Heptagon 8 / Octagon 10 / Decagon

To find how many degrees are in a polygon you have to make triangles by connecting the corners like so:



You want to use the least amount of triangles, unlike this person did:

Than add up the degrees. Or you can count the sides, subtract 2, and multiply by 180.

For more help go to []

By: Abby B. Credits: []