A polygon with sides of equal length and equal angles is termed a regular polygon.
An equilateral triangle.
If a shape has equal angles and side lengths then it is known as a regular polygon
Only when it is a regular polygon that all interior angles are of equal measure
A regular polygon has equal sides in length and angles.
This is a tautological question that does not have a proper answer. A regular polygon is one which has all its sides of equal length and all its interior angles of equal measure.
a "regular" polygon
All of the angles are equal in a "regular" polygon. (All of the sides are too.)
Only if the polygon is "regular".
If a polygon's sides are all of equal length, it is known as a regular polygon. (The measure of each of its angles will be the same as well)
A regular polygon has all sides of equal length, and all angles of the same measure. An irregular polygon does not fulfil these requirements.