A regular twenty-sided polygon is called an icosagon.
Icosahedron is the shape, but it's just called 20 sided if you want to buy one.
A polygon with 20 sides is called either a 20-gon or an icosagon.
A shape, or polygon, with 24 sides is called an icosikaitera. Many people simply refer to it as a 24-gon.
a 4 sided shape is called a quadrilateral
hendaciahedron
icosikaienneagon
A 23 sided polygon(shape) is called a icosikaitrigon, it can also be referred to as a 23-gon.
cosikaipentagon, or a cosipentagon
It is called a dretagalon
A regular twenty-sided polygon is called an icosagon.
Icosahedron is the shape, but it's just called 20 sided if you want to buy one.
A twenty sided, 2D figure is called an icosagon.
A polygon with 20 sides is called either a 20-gon or an icosagon.
Icosahedron
it is a twenty sided shape
a 24 sided polygon is a icosikaitera.