Petrie polygon

См. также в других словарях:

• Petrie polygon — In geometry, a Petrie polygon is a skew polygon such that every two consecutive sides (but no three) belong to a face of a regular polyhedron.This definition extends to higher regular polytopes. A Petrie polygon for an n polytope is a skew… …   Wikipedia

• Polygon — For other uses, see Polygon (disambiguation). Some polygons of different kinds In geometry a polygon (   …   Wikipedia

• Polygone de Pétrie — Pour les articles homonymes, voir Petrie. Le polygone de Pétrie d un octaèdre régulier est de forme hexagonale Un polygone de Pétrie est donné par la projection ort …   Wikipédia en Français

• John Flinders Petrie — (1907−1972) fue un matemático inglés, quien demostró una notable aptitud geométrica en su juventud. Cuando era un estudiante, conoció al gran geómetra Harold Scott MacDonald Coxeter, comenzando una amistad de toda la vida. Ellos colaboraron en el …   Wikipedia Español

• Skew polygon — In geometry, a skew polygon is a polygon whose vertices do not lie in a plane. Skew polygons must have at least 4 vertices.A regular skew polygon is a skew polygon with equal edge lengths and vertex transitive.The interior surface (or area) of… …   Wikipedia

• Decagon — Regular decagon Edges and vertices 10 Schläfli symbol {10} Coxeter–Dynkin diag …   Wikipedia

• 10-cube — Dekeract Orthogonal projection inside Petrie polygon Orange vertices are doubled, and central yellow one has four Type Regular 10 polytope Family hypercube Schläfli symbol {4,3 …   Wikipedia

• 10-demicube — Demidekeract (10 demicube) Petrie polygon projection Type Uniform 10 polytope Family demihypercube Coxeter symbol 171 Schläfli symbol …   Wikipedia

• Octagon — For other uses, see Octagon (disambiguation). Regular octagon A regular octagon Type general type of this shape Edges and vertices …   Wikipedia

• Dodecagon — Regular dodecagon Edges and vertices 12 Schläfli symbols {12} Coxeter–Dynkin diagrams …   Wikipedia

• 9-demicube — Demienneract (9 demicube) Petrie polygon Type Uniform 9 polytope Family demihypercube Coxeter symbol 161 Schläfli symbol …   Wikipedia