Names of Polygons
Polygon, a closed, flat shape, with three or more straight sides and angles..
Angle is the space between two adjacent sides of the polygon. Angles are measured in degrees
Vertex is the common endpoint of two adjacent sides of the polygon.
Equilateral: Having all sides or faces equal
Equiangular: Having equal angles.
Regular Polygon is a polygon that is equilateral (all sides of equal length) and equiangular (all angles of equal measure).
3 sides = Triangle.
4 sides = Quadrilateral.
5 sides = Pentagon.
6 sides = Hexagon.
8 sides = Octagon.
9 sides = Nonagon.
10 sides = Decagon.