closed polygons

A closed polygon is a shape made by connecting straight lines end-to-end, with the last point connecting back to the starting point. This creates a continuous, enclosed figure with no gaps. Examples include triangles, rectangles, and pentagons. The key feature is that the shape has an interior and defines an area. The sides are straight, and the shape’s perimeter is the total length of its sides. Closed polygons are fundamental in geometry and are used in art, architecture, and map design to represent enclosed spaces and boundaries.