A polygon, by definition, is a CLOSED plane shape, bounded by straight sides. Every polygon must begin and end at the same point.
Chat with our AI personalities
pyramid
I believe this is possibly called a vector. They begin at the same point, however, they do not run on the same plane, nor do the intersect. As I said, they do begin at the same point and form a triangle.
an irregular polygon is a polygon that is the opposite of a regular polygon in a regular polygon the sides are the same and the angles are the same and irregular is the opposite.
A circle perhaps?
A regular polygon is a polygon which is equiangular (all angles are the same) and equilateral (all sides have the same length).