Some examples include:
A triangular dipyramid.
a 4 sided 3d shape is called a triangular prism!!!!!!!!!!!!!!!
icosahedron
Heptrahedron
Triangular Pyramid.
A triangular dipyramid.
A 12 sided 3D shape is called a dodecahedron.
An 11-sided 3D shape is a hendecahedron.
the name of a 20 sided 3d shape is called a icosahedron
a 4 sided 3d shape is called a triangular prism!!!!!!!!!!!!!!!
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
tetrahedron
Octadecadron
tricotakaidihedron*
Triskaidecahedron
icosahedron