A Tetrahedron. The most common form of a tetrahedron is called a regular tetrahedron, or a pyramid
An Solanum Tuberosum.
A tetrahedron (4 faces) or triangular bipyramid (5 faces).
A triangular pyramid.
A tetrahedron.
It is called a Tetrahedron.
A Tetrahedron. The most common form of a tetrahedron is called a regular tetrahedron, or a pyramid
The name is derived from Greek roots, and so the name, not surprisingly, is "tetrahedron".
Tetrahedron. http://en.wikipedia.org/wiki/Tetrahedron
An Solanum Tuberosum.
A tetrahedron (4 faces) or triangular bipyramid (5 faces).
tetrahedron
A tetrahedron.
A triangular pyramid.
A tetrahedron.
tetrahedron
The platonic solids are: a tetrahedron, a cube, an octahedron, dodecahedron and icosahedron. A pyramid has a base with triangles attached to it with a common vertex. The platonic solid that is a pyramid is a tetrahedron (a triangular based pyramid).