Geometrically, this "great" polyhedron has a polygonal base & sides which come to a common vertex
..... A uniform dual is face-transitive and has regular vertices, but is 
not... [DOC] [TLE] What is pyramid - Sesli Szlk [PAR] ... polyhedron with one face (base) that is a polygon whose other faces (lateral 
faces) are ... pyramids of Egypt are the Great Pyramids of Giza, for the pharaohs 
Khufu, ... have square bases and triangular sides, meeting at the top, the vertex: a 
... for its base a polygon and for faces triangles with a common vertex; A pyramid 
is... [DOC] [TLE] What Makes a Pyramid?