seven-sided figure

A heptagon/septagon/7-gon is a shape with 7 sides and 7 corners.

A heptagon

Regular heptagonEdit

All sides of a regular heptagon are the same length. Each corner is 147.27°. All corners added together equal 6840°.


The amount of space a regular heptagon takes up is


a is the length of one of its sides.