EntityQ1792895· pop 19· linked from 218 articlescupolaSign in to savesolid formed by joining two polygons, one with twice as many edges as the other, by an alternating band of isosceles triangles and rectanglesConnectionspolygonEntitybicupolaEntitypolyhedronEntitytetrahedronEntityregular polygonEntitytriangular prismEntitygeometryEntitytriangleEntitysquareEntitypyramidEntityrectangleEntitycubeEntityhexagonEntitypyramidEntityequilateral triangleEntityprismEntityisosceles triangleEntityPlatonic solidEntitydodecahedronEntityvertexEntityCategoriesConvex polyhedraJohnson solidsPrismatoid polyhedra