A 20 sided polygon is an 'icosagon'
Icosahedron is a 20 sided polygon.
A 20 sided polygon
A 20-sided polyhedron is an icosahedron. A 20-sided polygon is an icosagon.
The interior angles of a 20 sided polygon add up to 3240 degrees
Duodecagon <--wrong... a duodecagon is a 12-sided polygon. icosagon is a 20 sided polygon.
A 20-sided polygon is an icosagon.(see related link)
The name of a 20 sided polygon is Icosagon.
A 20-sided polygon is called an icosagon.
The name of a 20 sided polygon is Icosagon.
A 20 sided polygon is an 'icosagon'
N-gon is the name of 13-20 sided polygon.
An icosagon is the name of the 20 sided polygon.
Icosahedron is a 20 sided polygon.
see related link below to see the 20 sided polygon
A 20 sided polygon
Shapes with 13 to 20 sides are known as polygons. Specifically, a 13-sided polygon is called a tridecagon, a 14-sided polygon is called a tetrakaidecagon, a 15-sided polygon is called a pentadecagon, a 16-sided polygon is called a hexadecagon, a 17-sided polygon is called a heptadecagon, an 18-sided polygon is called an octadecagon, a 19-sided polygon is called an enneadecagon, and a 20-sided polygon is called an icosagon.