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The plural of "polyhedron" is "polyhedra." There are only 5 regular polyhedra:
- Tetrahedron, 4 sides, all equilateral triangles
- Cube (or hexahedron), 6 sides, all squares
- Octohedron, 8 sides, all equilateral triangles
- Dodecahedron, 12 sides, all equilateral pentagons
- Icosahedron, 20 sides, all equilateral triangles
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∙ 10y ago
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What are the five regular polyhedra?
The five regular polyhedra are Tetrahedron, Hexahedron(cube), octahedron, dodecahedron and Icosahedron.
What is a regular polyhedra with 12 regular pentagon faces?
dodecahedron
What is a 7 regular polyhedra?
There are only 5 regular polyhedra: those with 4, 6, 8, 12 and 20 faces. If you know of 7 polyhedra there may be a Fields Medal (the Nobel prize for mathematicians) for you!
What is unique about the platonic solids?
They are regular polyhedra.
Does the platonic solids consist of regular polyhedra?
Yes, they do.
Which figures have congruent bases?
Prisms, regular polyhedra.
Witch polyhedra has 12 regular pentagons as faces?
dodecahedron
What shapes have identicle faces?
Regular polyhedra have identical faces.
Is circle regular or irregular?
Regular, although the term is more usually used with polygons and polyhedra.
What is a 5 regular polyhedra?
A tetrahedron, cube, octahedron, dodecahdron and icosahedron.
Is a decahedral die a regular polyhedron and why?
No it's not. There are only 5 regular polyhedra, and none of them has 10 sides.
What shape has two opposite identical faces?
A cube, a dodecahedron, an icosahedron amongst regular polyhedra. Many irregular polyhedra, including a prism.
