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A hexagon is a polygon with six edges and six vertices.

Regular hexagons

Each internal angle of a regular hexagon measures 120 degrees, so the sum of the angles is $720^{\circ}$.

A regular hexagon can be divided into 6 equilateral triangles where the apothem is the height of these triangles.

Area: $\frac{3s^2\sqrt{3}}{2}$ Where $s$ is the side length of the hexagon.

Apothem, or inradius: $\dfrac{s\sqrt{3}}{2}$

Circumradius: $s$

See Also