Plato associated the dodecahedron with the element that god used to arrange the constellations of the whole heaven. It was Aristotle that called this aether
The dodecahedron is a platonic solid made out of 12 congruent pentagons.
It has 30 edges and 20 vertices. At each vertex 3 faces meet.
It's net:
To view the 3D version:
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