Heptagon
shape with seven sides
A heptagon/septagon/7-gon is a shape with 7 sides and 7 corners.
![](http://up.wiki.x.io/wikipedia/commons/thumb/e/ea/Heptagon.svg/220px-Heptagon.svg.png)
Regular heptagon
changeAll sides of a regular heptagon are the same length. Each corner is 147.27°. All corners added together equal 6840°.
Area
changeThe amount of space a regular heptagon takes up is
a is the length of one of its sides.