Polyhedron
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In geometry, a polyhedron is a three-dimensional figure with flat polygonal faces, straight edges and sharp corners or vertices. The term "polyhedron" may refer either to a solid figure or to its boun
Problem 14 of the Moscow Mathematical Papyrus, on calculating the volume of a frustum
Fourteen sided die from the Warring States period
Doppio ritratto, attributed to Jacopo de' Barbari, depicting Luca Pacioli and a student studying a glass rhombicuboctahedron half-filled with water.
The radiolarian Circogonia icosahedra
Regular dodecahedron
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A regular dodecahedron or pentagonal dodecahedron is a dodecahedron composed of regular pentagonal faces, three meeting at each vertex. It is one of the Platonic solids, described in Plato's dialogues
Regular dodecahedron painting by Johannes Kepler
Kepler's Platonic solid model of the Solar System
Roman dodecahedron
The coccolithophore Braarudosphaera bigelowii covered with a coccosphere formed of twelve pentaliths