as Rectified Truncated Icosahedron. Vertices 90.
[size=85]This polyhedron was obtained in the critical points [url=https://www.geogebra.org/m/w8jgrjcf]scheme[/url] as a "saddle" polyhedron.[/size]
Comparison of the properties of polyhedra.
[size=85][url=http://dmccooey.com/polyhedra/RectifiedTruncatedIcosahedron.html]Rectified Truncated Icosahedron[/url], derived form [br]Vertices: 90 (30[4] + 60[4])[br]Faces: 92 (20 regular hexagons + 12 regular pentagons[br] + 60 isosceles triangles)[br]Edges: 180 (60 short + 120 long)[br]http://dmccooey.com/polyhedra/RectifiedTruncatedIcosahedron.html[/size]