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

Regular heptagon

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

Area

The amount of space a regular heptagon takes up is

${\displaystyle A={\frac {7}{4))a^{2}\cot {\frac {\pi }{7))\simeq 3.634a^{2}.}$

a is the length of one of its sides.

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