KnowraIcosahedronLinked fromLinked fromThe 4 pages that link to Icosahedron, each with the reason it gives.All 4Broader topic 3Related 1Platonic solidBroader topic: It has the largest number of faces among the five.Icosahedral symmetryBroader topic: Its rotational invariance is the geometric source of the symmetry.Schläfli symbolBroader topic: Its symbol {3,5} distinguishes it from the other Platonic solids.