How many sides does a heptagon have?

A heptagon is defined as a polygon that has seven sides. The prefix "hepta-" comes from Greek, meaning seven. In geometry, the term is used specifically to identify shapes that have this number of sides and angles.

Consequently, if one were to visualize or draw a heptagon, they would count seven distinct line segments that connect at seven vertices to form the shape. This identification is crucial in geometry, where understanding the properties and classifications of different polygons helps in various applications, including calculations of area, perimeter, and angles.

The other options reflect other polygon types: six sides correspond to a hexagon, eight sides refer to an octagon, and ten sides match a decagon. Each of these shapes is characterized by its own unique prefix that denotes the specific number of sides it possesses.