Name a polygon and classify it as regular or irregular

If it has 3 sides, its a triangle; 4 sides is a quadrilateral (rectangle, square, rhombus, parallelogram, trapezoid, kite, etc.) 5 a pentagon, 6 a hexagon, 7 is a heptagon, 8 is an octagon, 9 nonagon, 10 is a decagon, and so on. if all sides and angles are congruent, then it is regular.

There are many polygons like the triangle, square, pentagon, hexagon, heptagon, octagon nonagon, decagon these are all regular polygons.