What is the name of a polygon with 12 sides?
A dodecagon is a 12-sided polygon. Several special types of dodecagons are illustrated above. In particular, a dodecagon with vertices equally spaced around a circle and with all sides the same length is a regular polygon known as a regular dodecagon.
What are the first 12 polygons?
Names of Polygons
| Name | Sides | Interior Angle |
|---|---|---|
| Nonagon (or Enneagon) | 9 | 140° |
| Decagon | 10 | 144° |
| Hendecagon (or Undecagon) | 11 | 147.273° |
| Dodecagon | 12 | 150° |
What is the name of a 11 sided polygon?
A hendecagon is a shape with 11 sides and 11 vertices (corners). It has 11 angles inside it that add up to 1620°.
What are the names of all the polygon?
Types of Polygon With Sides 3 to 20
| Name of the Polygons | Sides | Angle |
|---|---|---|
| Triangle (also called Trigon) | 3 | 60° |
| Quadrilateral (also called Tetragon) | 4 | 90° |
| Pentagon | 5 | 108° |
| Hexagon | 6 | 120° |
What is a 12 sided shape called 3d?
dodecahedron
In geometry, a dodecahedron (Greek δωδεκάεδρον, from δώδεκα dōdeka “twelve” + ἕδρα hédra “base”, “seat” or “face”) or duodecahedron is any polyhedron with twelve flat faces. The most familiar dodecahedron is the regular dodecahedron with regular pentagons as faces, which is a Platonic solid.
What is the name of 20 sides of polygon?
In geometry, an icosagon or 20-gon is a twenty-sided polygon. The sum of any icosagon’s interior angles is 3240 degrees.
What is a 13 sided polygon called?
Tridecagon
A 13-sided polygon, sometimes also called the triskaidecagon.
What is a 14 sided polygon called?
In geometry, a tetradecagon or tetrakaidecagon or 14-gon is a fourteen-sided polygon.
What is the name of 10 polygon?
decagon
A decagon is a polygon that is easily identified by one key trait – it’s a 10 side shape with ten interior angles and ten vertices.
WHAT IS A 10000000 sided shape called?
A megagon or 1,000,000-gon is a polygon with one million sides (mega-, from the Greek μέγας, meaning “great”, being a unit prefix denoting a factor of one million). Regular megagon. A regular megagon.