EntityQ61562· pop 21· linked from 197 articlestriangular cupolaSign in to saveJohnson solidConnectionsJohnson solidEntitygeometryEntitytriangleEntityInternational Standard Book NumberEntitysquareEntitycubeEntitydigital object identifierEntityInternational Standard Serial NumberEntityhexagonEntitypyramidEntityequilateral triangleEntityprismEntityJSTOREntitybibcodeEntityPlatonic solidEntityvertexEntityCambridge University PressEntityregular polygonEntityedgeEntityconvex setEntityCategoriesJohnson solidsPrismatoid polyhedra