the name of a 20 sided 3d shape is called a icosahedron
they are: ---sided pyramids and triangular prisms and 20 sided 3d shapes
A 12 sided 3D shape is a dodecahedron.
A tridekahedron is a 3D 30 sided shape.
A 3D 5 sided shape is called a dodecahedron. It is a solid with 20 vertices, 30 edges and 12 equal pentagonal triangular faces.
An 11-sided 3D shape is a hendecahedron.
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A 12 sided 3D shape is called a dodecahedron.
A hexahedron is the name for a 6 sided 3D shape.
A five sided 3d shape is called a pentehedron
a 4 sided 3d shape is called a triangular prism!!!!!!!!!!!!!!!
A heptagon is not a 3D shape. It is a seven sided shape. It could be designed on 3D software if necessary.