A five sided 3d shape is called a pentehedron
A 12 sided 3D shape is called a dodecahedron.
An 11-sided 3D shape is a hendecahedron.
no
a 4 sided 3d shape is called a triangular prism!!!!!!!!!!!!!!!
An 18 sided shape is called a octadecagon. This refers to both 2 dimensional and 3 dimensional shapes in a mathematical sense.
the name of a 20 sided 3d shape is called a icosahedron
It is called a heptahedron.
HEXADECAHEDRON is the correct name for a 16 sided 3D object
pentagon
icosahedron
Heptrahedron