What polygon? Your asking "what are two names to describe a polygon" but haven't given a polygon...
you can describe it by its angles, or sides
A polygon is a shape with 3 or more sides
When I was taking a test in math, I had to describe a polygon.
A concave polygon.
describe the character;information of polygons
equal and sided
An hexagon is a 6 sided polygon
An octagon is an 8 sided polygon
A decagon is a 10 sided polygon