A four faced figure is a tetrahedron. If they are all congruent triangles, they are all equilateral triangles and it is a regular tetrahedron - one of the 5 Platonic Solids.
There are several triangular polyhedra. The simplest is a tetrahedron with 4 faces, but you can have a triangular dipyramid (two tetrahedra stuck together along one face) which has 6 faces. Then there is the icosahedron with 20 faces. The tetrahedron and icosahedron are Platonic solids, but there are many more.
The Platonic Solids: Tetrahedron, cube, octahedron, dodecahedron and icosahedron.
No; platonic solids are tetrahedron, cube, octahedron, dodecahedron, icosahedron.
No. There are only five Platonic Solids; Tetrahedron, Hexahedron, Octahedron, Dodecahedron and Icosahedron, with 4,6,8,12 and 20 faces respectively.
tetrahedron
The five platonic solids are the tetrahedron, hexahedron (cube), octahedron, dodecahedron, and icosahedron.
tetrahedron
There are 5 platonic solids. They are: Tetrahedron, Octahedron, Icosahedron, Cube, and Dodecahedron
The five platonic solids are the Tetrahedron, Hexahedronor Cube, Octahedron, Dodecahedron, and the Icosahedron
Together with icosahedron (20 faces) they are known as the Platonic Solids.
A four faced figure is a tetrahedron. If they are all congruent triangles, they are all equilateral triangles and it is a regular tetrahedron - one of the 5 Platonic Solids.
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).
the five regular (same side length and angle measure) solids- dodecahedron, tetrahedron, cube, octahedron, icosahedron
Polygons ( means many sides). They are called solids or polyhedrons; they exist in three dimensions and not two.
You could classify a regular tetrahedron, which is a platonic sold, as a cone.
There are several triangular polyhedra. The simplest is a tetrahedron with 4 faces, but you can have a triangular dipyramid (two tetrahedra stuck together along one face) which has 6 faces. Then there is the icosahedron with 20 faces. The tetrahedron and icosahedron are Platonic solids, but there are many more.