How Everything Works on Instagram: "A dodecagon is a twelve-sided polygon with twelve edges and twelve vertices. In a regular dodecagon, all sides and angles are equal, and each interior angle measures 150 degrees. The total sum of its interior angles is 1,800 degrees. Thanks to their symmetry and almost circular shape, regular dodecagons are commonly found in geometry, architecture, and design. They also appear in engineering and mathematics, especially in problems involving rotational symmetry