A triangular dipyramid.
A five sided 3d shape is called a pentehedron
a 4 sided 3d shape is called a triangular prism!!!!!!!!!!!!!!!
icosahedron
Heptrahedron
A triangular dipyramid.
A 12 sided 3D shape is called a dodecahedron.
A five sided 3d shape is called a pentehedron
An 11-sided 3D shape is a hendecahedron.
a 4 sided 3d shape is called a triangular prism!!!!!!!!!!!!!!!
the name of a 20 sided 3d shape is called a icosahedron
A 14-sided and 3-dimensional shape is called either a tetrakaidecahedron or tetradecahedron. This 14-sided polyhedron can have six quadrilateral and eight hexagonal faces.
HEXADECAHEDRON is the correct name for a 16 sided 3D object
It is called Triacontakaitetrahedron.
Dodecagon :)
tetrahedron
cuboctahedron