No and Yes A regular tetrahedron does not have any faces that are perpendicular to each other. (Regular in this sense means all edges are equally long - all faces are equilateral triangles)
You can construct a irregular tetrahedron with two or three perpencdicular faces. To make such a tetrahedron with three faces perpendicular, simply cut the corner of a cube.
A tetrahedron has 4 faces.
There are no specific names for the faces.
it has four faces
A tetrahedron has 4 faces. A "regular tetrahedron" has an equilateral triangular base with three equilateral triangles as sides coming up from it.
In geometry, a tetrahedron is a solid with four faces, which is a triangular pyramid (don't forget the base-face), and a regular tetrahedron has (4) faces that are equilateral triangles.
A tetrahedron has 4 faces.
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 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.
A tetrahedron has 4 faces.
No, tetrahedron is a polyhedron with four faces.
Usually not, but it can.