Heptagon
A heptagon/septagon or 7-gon is a shape with 7 sides and 7 corners.
Regular heptagon[change]
All 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[change]
The amount of space a regular heptagon takes up is
- <math>A = \frac{7}{4}a^2 \cot \frac{\pi}{7} \simeq 3.634 a^2.</math>
a is the length of one of its sides.
