Hendecagon

11-sided polygon

A hendecagon or 11-gon is a shape with 11 sides and 11 corners.

A hendecagon

Regular hendecagonEdit

All sides of a regular hendecagon are the same length. Each corner is 147.27°. All corners added together equal 1619.97°.

AreaEdit

The amount of space a regular hendecagon takes up is

 
 

a is the length of one of its sides.