The oldest know copy of Euclid's Elements is a manuscript that was handwritten on parchment in 888AD and is in the Bodleian Library at Oxford. Less complete manuscripts exist in other locations, including the Vatican Library.
Regular solids
geometry
im not sure how to answer it
It is a consequence of Euclids's parallel postulate.
13 of them.
euclids elements
'Elements' was written by Euclid.
compositions
euclids elements
There are 13 books in Euclid's Elements.
Regular solids
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.
need a simple explanation of Euclids theory.
His mathematical books called Elements. His work on geometry, particularly his famous axioms.
eetrgrv
Yes original copy is an oxymoron
The original. The copy is for your filing purposes and as a backup.