Polygons are shapes with closed sides made of straight lines, including regular polygons with equal angles and sides like triangles, pentagons, and quadrilaterals. Irregular polygons have unequal sides and angles. Shapes without closed sides made of straight lines are not considered polygons.

1. Polygons Any shape with closed sides and straight lines.

2. Regular polygons A polygon with equal angles and lines Pentagon Triangle Quadrilateral

3. Irregular polygons A polygon with un equal sides and lines.

4. NOT POLYGONS These are NOT polygons