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Proposition: Prop. 13.06: Segments of Rational Straight Line cut in Extreme and Mean Ratio are Apotome
(Proposition 6 from Book 13 of Euclid's “Elements”)
If a rational straight line is cut in extreme and mean ratio then each of the pieces is that irrational (straight line) called an apotome.
Modern Formulation
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Table of Contents
Proofs: 1
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Proofs: 1
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References
Adapted from (subject to copyright, with kind permission)
 Fitzpatrick, Richard: Euclid's "Elements of Geometry"
Adapted from CC BYSA 3.0 Sources:
 Prime.mover and others: "Pr∞fWiki", https://proofwiki.org/wiki/Main_Page, 2016