2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/136794We establish the second part of Milnor's conjecture on the volume of simplexes in hyperbolic and spherical spaces. A characterization of the closure of the space of the angle Gram matrices of simplexes is also obtained.15 pages. Version for publicationGeometric TopologyMetric Geometry53C65, 53A35text