EntityQ218898· pop 16· linked from 177 articleselongated triangular cupolaSign in to saveJohnson solidConnectionssquareEntityhexagonEntityJohnson solidEntitygeometryEntitytriangleEntityInternational Standard Book NumberEntitydigital object identifierEntitypyramidEntityequilateral triangleEntityprismEntityPlatonic solidEntityvertexEntityregular polygonEntityedgeEntityconvex setEntityMathWorldEntityArchimedean solidEntityQ22908627EntityfaceEntitycyclic groupEntityCategoriesJohnson solids