A polyhedron with 20 faces is called an icosahedron.
An icosahedron.
The regular solid, with 20 identical equilateral triangular faces, is called an icosahedron.
A cube has six square faces.
A vertex is the name of a corner on a solid where three or more faces meet (plural = vertices).
A polyhedron with 20 faces is called an icosahedron.
A polyhedron with 20 faces is called an icosahedron.
An icosahedron.
The regular solid, with 20 identical equilateral triangular faces, is called an icosahedron.
Icosahedron.
Icosahedron
A cube has six square faces.
A vertex is the name of a corner on a solid where three or more faces meet (plural = vertices).
If the faces are flat, it's a line.
an edge
The solid with 12 equal faces is a dodecahedron. A dodecahedron has 12 equal pentagon surfaces.
a triangular prism.