Polygons
Polygon: a two dimensional shape with straight sides.
Triangle: a polygon with three sides
Pentagon: a polygon with five sides
Hexagon: a polygon with six sides
Heptagon: a polygon with seven sides
Octagon: a polygon with eight sides
Nonagon: a polygon with nine sides
Decagon: a polygon with ten sides
Works Cited h&tbnid=0QBv5PRtY7IoOM:&imgrefurl= docid=HA0s2vwRz6oCbM&imgurl= K_Stop_sign.gif&w=400&h=400&ei=cYReT5ipNejz0gHG1JWrBw&zoom=1