What are some shapes with more than 12 sides?

Shapes with more than 12 sides are referred to as polygons, specifically named based on the number of sides they have. For example, a 13-sided polygon is called a triskaidecagon, a 14-sided polygon is a tetradecagon, and a 15-sided polygon is a pentadecagon. These shapes can be regular, where all sides and angles are equal, or irregular, with varying lengths and angles. Other examples include 16-gon (hexadecagon) and 20-gon (icosagon).