A polygon is a closed shape with many sides. A hexagon is a specific type of polygon which has only 6 sides. The perimeter of a polygon is the total length of all its sides and can be determined by simply adding all of the given sides. A regular hexagon is a special kind of hexagon where all its six sides are equal in length. Instead of adding the 6 sides to find the perimeter, any 1 of its sides can be multiplied by 6.

For a regular hexagon, instead of the length of the side, the area of the shape might be given. In such cases, the perimeter can be found by first doubling the area and then dividing it by the length of the apothem of the hexagon. The apothem is the distance between the center of the hexagon and the midpoint of any 1 of its sides. After calculating the perimeter, if necessary, it can be divided by 6 to find the length of one side of the regular hexagon.