# Hexagon A **hexagon** is a [[polygon]] with six sides. ## Regular Hexagon In a [[regular]] hexagon, the [[interior angle]] is $120^\circ$ and the [[exterior angle]] is $60^\circ$. A regular hexagon can be decomposed into six [[equilateral triangles]]. This shows that the long [[diameter]] is twice the side length, while the short [[diameter]] is $\sqrt{3}$ times the side length. The area is $\frac{3\sqrt{3}}{2}$ times the square of the side length. [[!redirects regular hexagon]] [[!redirects regular hexagons]] [[!redirects hexagons]] [[!redirects lengths in a regular hexagon]] [[!redirects lengths in regular hexagons]] [[!redirects area of a regular hexagon]] [[!redirects area of a hexagon]] [[!redirects properties of a regular hexagon]]