A tetrahedron.
A Hexahedron has no triangular faces. A Tetrahedron has 4 triangular faces. A octahedron has 8 triangular faces. A Icosahedron has 20 triangular faces. By:-Cherrylvr- :)
They all are, with 6, 20, 8, 4 and 12 faces respectively.
Hexahedron
No. There are only five Platonic Solids; Tetrahedron, Hexahedron, Octahedron, Dodecahedron and Icosahedron, with 4,6,8,12 and 20 faces respectively.
Their faces are equilateral triangles.
Tetrahedron, Pentahedron,Hexahedron,Heptahedron,Octahedron.
A tetrahedron, an octahedron or an icosahedron,
There are many possible shapes. The regular ones amongst them are the tetrahedron, the octahedron and the icosahedron.
Tetrahedron Or Octahedron, or icosahedron, plus any number of irregular polyhedra.
The Platonic Solids: Tetrahedron, cube, octahedron, dodecahedron and icosahedron.
a cube * * * * * A cube is only one example. Any one of the five Platonic solids - tetrahedron, cube or hexahedron, octahedron, dodecahedron or icosahedron - are made up from congruent plane faces.
There are an infinite number of possible answers. Tetrahedron. octahedron and icosahedron are the regular ones amongst them.