A heptagon is a shape with how many sides?

A heptagon is defined as a polygon with seven sides. The term "heptagon" comes from the Greek word "hepta," which means seven. In geometry, knowing the number of sides helps provide a better understanding of the shape's properties, such as the internal angle measures. A regular heptagon, where all sides and angles are equal, has internal angles that each measure approximately 128.57 degrees. Understanding the characteristics of a heptagon is essential for studying polygons and their classifications in geometry.