The properties of a Regular Polygon are:All sides are equalAll angles are equalA rectangle only shares one of these properties, Equal Angles, so No, a Rectangle is not a regular polygon.
Regular polygons must have all equal sides and also equal angles
All the sides of a regular polygon must be the same length and each angle of must be of the same measure.
All the sides of a regular polygon have the same length. If two or more sides of a polygon have different lengths, then the polygon is not regular.
A polygon with 5 sides all the same length.
its a not regular polygon
A 6 sided hexagon polygon can be regular or irregular.
Any polygon can have, and every regular polygon has.
big and long
A regular polygon is a polygon whose sides are equal length and whose angles are all the same value. A non regular polygon is just the opposite of a regular polygon.
A triangle (not traingle) is a polygon. It can be a regular polygon but need not be.
If every side of the polygon is the same length, then it is a regular polygon. If the measure of every internal angle of a polygon is the same as every other, then it is a regular polygon. The two always go together, so you need to check only one of the above criteria.