EntityQ1154713· pop 21· linked from 197 articlespentagonal pyramidSign in to savepyramid having a pentagonal baseConnectionsJohnson solidEntitypentagonEntitydual polyhedronEntitycopperEntitygeometryEntityaluminiumEntityvirusEntitytriangleEntityelectronEntityInternational Standard Book NumberEntitynatural scienceEntityWayback MachineEntitydigital object identifierEntitygolden ratioEntitypyramidEntitydegreeEntityelectrolyteEntityequilateral triangleEntityCartesian coordinate systemEntitypolyhedronEntityCategoriesElementary polyhedronJohnson solidsPrismatoid polyhedraPyramids (geometry)Self-dual polyhedra