A regular hexagon is a six-sided polygon where all sides and angles are equal. Each internal angle measures 120 degrees, and the shape can be easily recognized by its symmetrical appearance. Regular hexagons can be found in nature, such as in honeycombs created by bees. The distance from the center to any vertex is called the radius, and the distance from the center to the midpoint of a side is known as the apothem. Regular hexagons can tile a plane without gaps, making them useful in various fields, including architecture and design.