Tetrahedron
1. triangular prism it has 2 triangular faces. 2.triangular base pyramid, it has 5 triangular faces. 3. square base pyramid, it has 4 triangular faces.
pyramid
Tetra = four. It is a 3-d shape with 4 faces.
A vertex is the name of a corner on a solid where three or more faces meet (plural = vertices).
Together with icosahedron (20 faces) they are known as the Platonic Solids.
A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.
There are no regular solids with an odd number of sides and therefore no regular solids with 5 faces. For this reason there is no give name, as such, for a 5 faced solid. There are however non-regular solids which have 5 faces, such as a square pyramid and a triangle cylinder.
Trapezium, or triangular pyramid * * * * * A triangular pyramid, yes. But not a trapezium since that does not have four triangular faces.
Tetrahedron
Isosceles TetrahedronA solid with four faces is a tetrahedron. Each of the faces is a triangle. If all the triangles are congruent, you have an isosceles tetrahedron.
By its very nature of being a triangle, and a 2D shape, a triangle cannot have four plane faces. However, a tetrahedron is a polyhedron made up of four triangular faces.
1. triangular prism it has 2 triangular faces. 2.triangular base pyramid, it has 5 triangular faces. 3. square base pyramid, it has 4 triangular faces.
the name of a shape with four faces is a square or rectangle.
A pyramid.
pyramid
Tetra = four. It is a 3-d shape with 4 faces.