polygons

A polygon is a flat, closed shape formed by straight lines connected end-to-end. Each of these lines is called a side, and the points where sides meet are called vertices. Polygons can have varying numbers of sides—such as triangles with three sides, squares with four, and pentagons with five. They are classified as regular when all sides and angles are equal, or irregular when they are not. Polygons are used in various fields like architecture, art, and mathematics to represent shapes with straight boundaries.