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There are 5 regular polyhedra: tetrahedron, cube,octahedron, dodecahedron and icosahedron. The number could be said to be 8 when the three zero volume polyhedra are added, the Triangle, the square and the hexagon. The formula is 1/sides per face + 1/faces per node = 1/edges + 1/2.
For example 1/3 + 1/6 = 1/2 + 1/e edges are infinite cover the plane for 6 triangles at a node, also 1/4 +1/4 gives four squares at a node and finally 1/6 + 1/3 gives 3 hexagon at a node also covers the plane.
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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
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.
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.
