What is closed plane figure with any number of sides?

Answer 1

A closed plane figure with any number of sides is called a polygon. Polygons can have a variety of shapes and sizes, classified by the number of sides they possess, such as triangles (3 sides), quadrilaterals (4 sides), pentagons (5 sides), and so on. They are two-dimensional shapes that can be regular (with equal sides and angles) or irregular (with varying side lengths and angles). Examples include squares, rectangles, and hexagons.