hendecagon and dodecagon (repectively).
An irregular do-decagon
An irregular dodecagon.
a 12 sided shape.
Shapes with 12 to 20 sides are named as follows: a 12-sided shape is called a dodecagon, a 13-sided shape is a triskaidecagon, a 14-sided shape is a tetradecagon, a 15-sided shape is a pentadecagon, a 16-sided shape is a hexadecagon, a 17-sided shape is a heptadecagon, an 18-sided shape is an octadecagon, a 19-sided shape is a nonadecagon, and a 20-sided shape is an icosagon.
12-sided two dimensional shape: dodecagon12-sided three dimensional shape: dodecahedron
A 12-sided shape is called a dodecagon.
11 is a hendecagon and a 12 is a dogecahedron
12-sided- dodecahedron
A 12 sided shape is called a dodecagon. Please see the related links for details.
An irregular do-decagon
An irregular dodecagon.
It's called a dodecagon or a duodecagon.
a 12 sided shape.
A 12 sided 3D shape is a dodecahedron.
12-sided two dimensional shape: dodecagon12-sided three dimensional shape: dodecahedron
A 12 sided 3D shape is called a dodecahedron.
10 sided shape: Decagon