No, it is not.
A polygon, by definition, is a closed figure. So a closed polygon is an undefined object.
To answer your question first here is the definition of polygon "a closed plane figure bounded by straight sides " So it makes no sense to count the sides in an open polygon since it is really not a polygon.
an open figure is a polygon that is not completely closed.
As long as it doesn't have open or curved edges, it is a polygon. Go look polygon up in the dictionary! By:SupeRMAn
then it wouldn't be considered a oplygon
An open curve, perhaps.
It depends on which kind of Polygon your talking about. Like a square is 360 degrees. As long as a shape has no curved or open lines, it's a polygon.
A regular pentagon has straight sides and is closed so its a polygon. Any shape with straight sides and is closed is a polygon. Example O (circle) has curved lines so its not a polygon L (square) is open therefore it is not a polygon.
OCTAGON spelled exactly how it is.For extra a polygon is a shape that...:Has no open spacesAlways has straight linesCannot intersect
It could be a plus (+) sign