Proposition: 2.14: Constructing a Square from a Rectilinear Figure
(Proposition 14 from Book 2 of Euclid's “Elements”)
To construct a square equal to a given rectilinear figure.
Modern Formulation
It is possible to construct a square with the area equal to the area of a given an arbitrary convex \(n\)sided figure.
Table of Contents
Proofs: 1
Mentioned in:
Proofs: 1
Sections: 2
Thank you to the contributors under CC BYSA 4.0!
 Github:

 nonGithub:
 @Calahan
 @Casey
 @Fitzpatrick
References
Adapted from CC BYSA 3.0 Sources:
 Callahan, Daniel: "Euclid’s 'Elements' Redux" 2014
Adapted from (Public Domain)
 Casey, John: "The First Six Books of the Elements of Euclid"
Adapted from (subject to copyright, with kind permission)
 Fitzpatrick, Richard: Euclid's "Elements of Geometry"