EntityQ2560593· pop 13· linked from 177 articlestriangular hebesphenorotundaSign in to saveJohnson solidConnectionspentagonEntityhexagonEntitygeometryEntitytriangleEntityInternational Standard Book NumberEntitysquareEntityvolumeEntitydigital object identifierEntitygolden ratioEntitypyramidEntityequilateral triangleEntityCartesian coordinate systemEntityprismEntityPlatonic solidEntityvertexEntityregular polygonEntityCambridge University PressEntityedgeEntityconvex setEntityMathWorldEntityCategoriesElementary polyhedronJohnson solids