a regular polygon
That's a regular polygon.
Any regular polygon
An irregular polygon
It is a regular polygon
It would be an irregular polygon that has not congruent sides and angles
A regular polygon
a regular polygon
It is a regular polygon
A regular polygon is a polygon with congruent sides and interior angles.
That's a regular polygon.
Any regular polygon
An irregular polygon
It is a regular polygon
A polygon with all sides congruent is a square.
Not necessarily. A convex heptagon is a polygon but it need not have all sides and angles congruent.
It is an equilateral polygon. It is not a regular polygon. For the polygon to be regular, it is not enough for the sides to be congruent: all the angles need to be congruent as well.