Hexagons are polygons with six sides. The name hexa comes from the Greek word hexa, which means “six,” referring to the hexagon’s six sides, which distinguishes it from other polygons.
Hexagons with six sides of equal length and internal angles totaling 720 degrees are called regular hexagons. Hexagons do not, however, have to have equal-length sides. A hexagon is any closed shape with six sides. Arbitrary hexagons are hexagons with sides that are not all the same length. Connecting the centroids of any arbitrary hexagon, according to Wolfram MathWorld, will result in a regular hexagon with six equal sides.