The points of an Icosahedron (one of the 5 Platonic Solids) an be made by intersecting 3 Golden rectangles (based on the proportion Phi - - the Golden Ratio). An icosahedron has 20 triangular faces, 30 edges and 12 vertices.
They are geometrical forms which are said to act as a template from which all life springs. They are named after the ancient Greek philosopher Plato. To the Greeks, these solids symbolized fire, earth, air, spirit (or ether) and water.