3D Figures and Polyhedrons

There are only five regular polyhedra. They are sometimes called the Platonic solids after the ancient Greek philosopher Plato. Plato, who lived in the fourth century, linked the shapes to basic elements in science. The motto inscribed over the door of Plato's school in Athens read "Let no one ignorant of geometry enter here."

Name of Regular Polyhedron	Shape of Each Face	Number of Faces	Science Connection/Element
tetrahedron	equilateral triangle	4	fire
cube	square	6	earth
octahedron	equilateral triangle	8	air
icosahedron	equilateral triangle	20	water
dodecahedron	regular pentagron	12	universe