EntityQ2745944· pop 17· linked from 288 articlesregular polytopeSign in to savepolytope whose symmetry group acts transitively on its flagsConnectionspentachoronEntitycross-polytopeEntitysquareEntitydimensionEntityAugustin-Louis CauchyEntitythree-dimensional spaceEntitytwo-dimensional spaceEntityhypercubeEntitytesseractEntityfaceEntityKepler–Poinsot polyhedronEntityregular polyhedronEntityHarold Scott MacDonald CoxeterEntitydual polyhedronEntitynetEntityone-dimensional spaceEntity4-polytopeEntityCoxeter groupEntity16-cellEntity5-cubeEntityCategoriesHarv and Sfn no-target errorsRegular polytopes