Proposition: 4.05: Circumscribing Circle about Triangle
(Proposition 5 from Book 4 of Euclid's “Elements”)
To circumscribe a circle about a given triangle.
* Let $ABC$ be the given triangle.
* So it is required to circumscribe a circle about the given triangle $ABC$.
It is possible to circumscribe a circle about a given triangle.
Table of Contents
Proofs: 1 2
Adapted from (subject to copyright, with kind permission)
- Fitzpatrick, Richard: Euclid's "Elements of Geometry"
Adapted from CC BY-SA 3.0 Sources:
- Prime.mover and others: "Pr∞fWiki", https://proofwiki.org/wiki/Main_Page, 2016