Paper Models of Square Pyramids

Square Pyramid: Number of faces: 5 Number of edges: 8 Number of vertices: 5
Cheops Pyramid: Number of faces: 5 Number of edges: 8 Number of vertices: 5

square pyramids: PDF
cheops pyramid: PDF
Print the picture (GIF) or the PDF-file. The PDF-file is of higher quality.

Definition of a Pyramid: A pyramid is a polyhedron with one face (known as the "base") a polygon and all the other faces triangles meeting at a common polygon vertex (known as the "apex"). A right pyramid is a pyramid for which the line joining the centroid of the base and the apex is perpendicular to the base. A regular pyramid is a right pyramid whose base is a regular polygon. An n-gonal regular pyramid (denoted Yn) having equilateral triangles as sides is possible only for n=3, 4, 5. These correspond to the tetrahedron, square pyramid, and pentagonal pyramid, respectively.

Paper model:
Selection of pyramids

Links:
Virtual Square Pyramid (VRML-viewer is needed)


Español: pirámides cuadrada

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