A dodecagon or 12-gon is a shape with 12 sides and 12 corners.
Regular dodecagon[change | change source]
All sides of a regular dodecagon are the same length. Each corner is 150°. All corners added together equal 1800°.
Area[change | change source]
The amount of space a regular dodecagon takes up is
Perimeter[change | change source]
The perimeter of a regular dodecagon is
The variable P represents the perimeter, and the variable s represents one side.