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Leonardo da Vinci's rhombicuboctahedron http://en.wikipedia.org/wiki/Rhombicuboctahedron

Leonardo da Vinci's rhombicuboctahedron http://en.wikipedia.org/wiki/Rhombicuboctahedron

"Retrato de Fra Luca Pacioli e seu Aluno".  (1495). (by Jacopo de' Barbari).

"Retrato de Fra Luca Pacioli e seu Aluno". (1495). (by Jacopo de' Barbari).

Luca Pacioli’s "De Divina Poroportione"Leonardo da Vinci.

Luca Pacioli’s "De Divina Poroportione"Leonardo da Vinci.

Leonardo da Vinci for Luca Pacioli's 1509 book De Divina Proportione (The Divine Proportion). Drawing of the Duodecedron Abscisus Elevatus Vacuus, consisting of 120 equilateral triangles.

Leonardo da Vinci for Luca Pacioli's 1509 book De Divina Proportione (The Divine Proportion). Drawing of the Duodecedron Abscisus Elevatus Vacuus, consisting of 120 equilateral triangles.

The golden ratio is explored in Luca Pacioli's book 'De divina proportione' of 1509 - (portrait of Pacioli by Jacopo de' Barbari - 1500s)

The golden ratio is explored in Luca Pacioli's book 'De divina proportione' of 1509 - (portrait of Pacioli by Jacopo de' Barbari - 1500s)

Stella Octangula, from "De Divina Proportione" by Luca Pacioli, Published 1509, Venice

Stella Octangula, from "De Divina Proportione" by Luca Pacioli, Published 1509, Venice

De Ludo Scachorum di Luca Pacioli. Edizione in facsimile.

De Ludo Scachorum di Luca Pacioli. Edizione in facsimile.

De Divina Proportione is a book by Luca Pacioli illustrated by Leonardo da Vinci | Graphicine

De Divina Proportione is a book by Luca Pacioli illustrated by Leonardo da Vinci | Graphicine

Icosahedron, from "De Divina Proportione" by Luca Pacioli, Published 1509, Venice  by Leonardo da Vinci

Icosahedron, from "De Divina Proportione" by Luca Pacioli, Published 1509, Venice

Icosahedron, from "De Divina Proportione" by Luca Pacioli, Published 1509, Venice by Leonardo da Vinci