hendecagon
In geometry, a hendecagon (also undecagon or endecagon) or 11-gon is an eleven-sided polygon.
What is a 12 sided polygon called?
dodecagon
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 is a 8 sided shape called?
octagon
In geometry, an octagon (from the Greek ὀκτάγωνον oktágōnon, “eight angles”) is an eight-sided polygon or 8-gon. A regular octagon has Schläfli symbol {8} and can also be constructed as a quasiregular truncated square, t{4}, which alternates two types of edges.
What is a shape with 1 million sides called?
Properties. Convex, cyclic, equilateral, isogonal, isotoxal. 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).
What’s a 14 sided shape called?
tetradecagon
In geometry, a tetradecagon or tetrakaidecagon or 14-gon is a fourteen-sided polygon.
What is a nine-sided shape called called?
What Is a Nine-Sided Shape Called? A nonagon is a closed shape that has nine sides. If it is a regular nonagon, all nine sides are the same length, and all the angles are equal. The sum of the interior angles of a nonagon is 1260 degrees.
How many dihedral symmetries are there on the enneagon?
There are 2 subgroup dihedral symmetries: Dih 3 and Dih 1, and 3 cyclic group symmetries: Z 9, Z 3, and Z 1 . These 6 symmetries can be seen in 6 distinct symmetries on the enneagon. John Conway labels these by a letter and group order.
How are the vertices of a regular enneagon colored?
Vertices are colored by their symmetry positions. Blue mirrors are drawn through vertices, and purple mirrors are drawn through edge. Gyration orders are given in the center. The regular enneagon has Dih 9 symmetry, order 18. There are 2 subgroup dihedral symmetries: Dih 3 and Dih 1, and 3 cyclic group symmetries: Z 9, Z 3, and Z 1 .
What are the gyration orders of the regular enneagon?
Blue mirrors are drawn through vertices, and purple mirrors are drawn through edge. Gyration orders are given in the center. The regular enneagon has Dih 9 symmetry, order 18. There are 2 subgroup dihedral symmetries: Dih 3 and Dih 1, and 3 cyclic group symmetries: Z 9, Z 3, and Z 1 .
