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Five. They are:

  • Tetrahedron (4 triangles)
  • Cube (6 squares)
  • Octahedron (8 triangles)
  • Dodecahedron (12 pentagons)
  • Icosahedron (20 triangles).


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Q: How many different regular polyhedra?
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Related questions

What are the five regular polyhedra?

The five regular polyhedra are Tetrahedron, Hexahedron(cube), octahedron, dodecahedron and Icosahedron.


What is the formula for volume of a regular solid?

I think its LxWxH * * * * * No it is not. There are different formulae for different solids such as spheres and polyhedra etc.


What shape has two opposite identical faces?

A cube, a dodecahedron, an icosahedron amongst regular polyhedra. Many irregular polyhedra, including a prism.


Is a polyhedron a cube?

A polyhedron is a solid with flat faces - a cube is just one of many different examples of regular polyhedra - otherwise known as platonic solids.


Is a pyramid a polyhedra?

No. A pyramid is a polyhedron. Many pyramids are polyhedra.


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.


Is a tetrahdron a polyhedra?

Not exactly. A tetrahedron is a polyhedron. Many tetrahedra are polyhedra.


What do platonic solids have in common?

They are all convex, they are all polyhedra and they are all regular.


What is the difference between a polyhedron and polyhedra?

One polyhedron; many polyhedra. Simple,wasn't that?


How do you name a polyhedra?

Polyhedra are named by the number of faces they contain. The names are based on Classical Greek. Over time, some polyhedra have become known by common, non-Greek names, i.e. a regular hexahedron is commonly called a cube.


How many different polyhedra are there?

There are infinitely many polyhedra. There is no limit to the number of faces that a polyhedron can have. Given any polyhedron, simply cut off one vertex so that you will have a polyhedron with one more face. Also there are several versions of polyhedra with the same number of faces. A hexahedron, for example, can be a parallelepiped or a pentagon based pyramid or a triangular based dipyramid.


What 3 dimensional shape takes 2 polygons to make?

There are infinitely many polyhedra that can be made from two different polygons.