Decagon: meaning, definitions and examples

geometry shape

A decagon is a ten-sided polygon. In a regular decagon, all sides and angles are equal, making it a highly symmetrical shape. It can be found in various fields including architecture and design, where ten-sided structures or patterns might be desired. The sum of the interior angles of a decagon is 1440 degrees. Decagons can also appear in tiling and art.

ten-sided polygon, tengon

Examples of usage

• The garden was designed in the shape of a decagon.

• In our geometry class, we learned how to calculate the area of a decagon.

• The artist created a decagonal pattern for the mural.

• He illustrated a decagon in his presentation about polygons.