Heptagon
shape with seven sides
A heptagon/septagon or 7-gon is a shape with 7 sides and 7 corners.
Regular heptagon
changeAll sides of a regular heptagon are the same length. Each corner is about 147.27°. All corners added together are about equal to 6840°.
Area
changeThe amount of space a regular heptagon takes up is
a is the length of one of its sides.