# Demetrius Laco, De geometria 9

Demetrius Laco, Demetrius Laco, De geometria, Column 9. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/demetrius-laco/demetrius-laco-de-geometria/9

τει κύκλος ἐστὶ σχῆ μα ἐπίπεδον ὑπὸ μιᾶς γραμμῆς περιεχόμενον, πρὸς ἣν ἀφ' ἑνὸς σημείου τῶν ἐντὸς τοῦ κύκλου κειμένων πᾶσαι αἱ προσπείπτουσαι εὐ θῆαι ἴσαι εἰσίν· οὕτω γὰρ αὐτὸν ὁρίζουσιν οἱ γεωμέτραι

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Demetrius Laco, Demetrius Laco, De geometria. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY 3.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg1300.dclp59496.local001/.