Piisfun Apr 17, 2026 20 triangles, five per vertex. 30 edges. 12 vertices A neighbor with 12 pentagons (three per vertex), 30 edges, and 20 vertices.
20 triangles, five per vertex. 30 edges. 12 vertices A neighbor with 12 pentagons (three per vertex), 30 edges, and 20 vertices.