Element's Volume XIII, along with Volumes XI and XII, examines three-dimensional figures. Volume XIII includes the construction of pyramids, cubes, octahedrons, dodecahedrons, and icosahedrons (the five regular Platonic solids) in a sphere.
compositions
The thirteenth book in Euclids Elements has no specific title, but covers the Pythagorean proofs of Theaetetus (c. 417-369 bc) and the construction of the five regular Platonic solids (pyramid, cube, octahedron, dodecahedron, icosahedron) inside a given sphere.
euclids elements
'Elements' was written by Euclid.
euclids elements
There are 13 books in Euclid's Elements.
Regular solids
Volume XIII of Elements deals with the construction of the five regular Platonic solids (pyramid, cube, octahedron, dodecahedron, icosahedron) inside a given sphere.
need a simple explanation of Euclids theory.
His mathematical books called Elements. His work on geometry, particularly his famous axioms.
Regular solids
Platonic solids