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There are five regular polyhedra, also known as the Platonic solids. They are three-dimensional shapes where all of the faces are made up of the same regular polygon.

They are:

  • Tetrahedron with four faces (this one is like a pyramid, but with an equilateral triangle for the base and all of the faces)
  • Cube with six faces (all squares)
  • Octahedron with eight faces (all equilateral triangles)
  • Dodecahedron with 12 faces (all regular pentagons)
  • Icosahedron with 20 faces (all equilateral triangles)

A square pyramid (like the Egyptian pyramids) is not a regular polyhedron, because it has two different types of regular polygons for faces.

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12y ago

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More answers

Yes when in the form of a tetrahedron which is a triangular based pyramid

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11y ago
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Only if the pyramid in the form of a tetrahedron that it will have 4 equilateral triangular faces, 6 edges and 4 vertices.

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7y ago
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Q: Is a regular polyhedron a pyramid?
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