What is an octagon?

An octagon is defined as a polygon that has eight sides. This means it has eight edges and eight vertices where the sides meet. The term "octagon" is derived from the Greek word "okto," meaning eight. In the context of geometry, polygons are classified based on the number of sides they possess, and an octagon is specifically identified as having these eight sides. Recognizing the defining characteristic of octagons helps in understanding various shape-related concepts, particularly in both geometry and practical applications like architecture and design. Also, it’s important to note that polygons with fewer or more than eight sides, such as those with four, five, or ten sides, do not meet the criteria for being classified as an octagon.