equilateral triangles
You need at least 4 faces for a pyramid. That type is known as Tetrahedron (http:/en.wikipedia.org/wiki/Tetrahedron)
There are four number of faces in a tetrahedron.
They don't have names beyond "the faces of the tetrahedron."
A triangular pyramid has four faces, and is referred to as a tetrahedron if the faces ale all equilateral triangles.
A tetrahedron has 4 faces and 4 vertices.A tetrahedron has 4 faces and 4 vertices.A tetrahedron has 4 faces and 4 vertices.A tetrahedron has 4 faces and 4 vertices.
You need at least 4 faces for a pyramid. That type is known as Tetrahedron (http:/en.wikipedia.org/wiki/Tetrahedron)
A tetrahedron has 4 faces.
equilateral triangles-Apex ;)
A tetrahedron has four faces.
There are four number of faces in a tetrahedron.
They don't have names beyond "the faces of the tetrahedron."
A tetrahedron has 4 faces.
A triangular pyramid has four faces, and is referred to as a tetrahedron if the faces ale all equilateral triangles.
A tetrahedron has 4 faces and 4 vertices.A tetrahedron has 4 faces and 4 vertices.A tetrahedron has 4 faces and 4 vertices.A tetrahedron has 4 faces and 4 vertices.
A truncated tetrahedron has eight 8 faces: 4 hexagonal faces and 4 triangular faces.
No. The faces of a tetrahedron are equilateral triangles, but none of the faces is parallel to another one of the faces -- they could not be parallel, since by the definition of a tetrahedron, all the faces intersect(!) and parallel planes do not intersect.
A tetrahedron has four faces.