Asyeeloetolt
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.
Tetra = four. It is a 3-d shape with 4 faces.
pyramid
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.
Pythagoras referred to the five regular solids as the "Platonic solids." These solids are the tetrahedron, cube, octahedron, dodecahedron, and icosahedron. Each solid is characterized by having faces that are congruent regular polygons and the same number of faces meeting at each vertex. They were associated with the elements in ancient philosophy: earth, air, water, fire, and the cosmos.
The correct name for a 3D triangular pyramid is a 'TETRAHEDRON. It has FOUR(4) 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.