A twenty-eight sided figure is called an Icosikaioctagon. The word icos refers to the number twenty and the word octagon refers to eight. When combined, they form the word Icosikaioctagon.
A twenty sided, 2D figure is called an icosagon.
Dodecahedron
Icosagon
The name of a four sided figure (or shape) is called a Square. :)
The name that is given to an 8 sided figure is a octogan.
A 5 sided figure is called a: pentagon
A 15-sided figure is called a pentadecagon.
A 20-sided flat figure (polygon) is called an icosagon. If it is a solid figure--three-dimensional--it is an icosahedron.
The name of am 11-sided figure is a "hendecagon". ---- Also known as an "undecagon".
A 5-sided figure is called a pentagon.
the name of a two sided figure is a jamie n its the coolest shape ever created the name of a two sided figure is a jamy n its the coolest shape ever created