# Liber geeponicus [Sp.] 54

Hero of Alexandria, Liber geeponicus [Sp.], Chapter 54. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/hero-of-alexandria/liber-geeponicus-sp/54

Ἔστω πάλιν τρίγωνον ἰσόπλευρον καὶ ἐχέτω ἑκάστην πλευράν ἀνὰ πόδας λ΄, καὶ περιγεγράφθω κύκλος· εὑρεῖν αὐτοῦ τὴν διάμετρον· ποιῶ ούτως· τὰ λ΄ ἐφʼ ἑαυτὰ γίνονται Ϡ΄· φανερὸν ὅτι κάθετος τοῦ τριγώνου ἔσται ποδῶν κϚ΄· ἄρτι μερίζω τῶν Ϡ΄ τὸ κϚ″· γίνονται πόδες λδ΄ Ϲ η″· ἔσται ἡ διάμετρος τοῦ κύκλου τοσούτων.

---

Hero of Alexandria, Liber geeponicus [Sp.], ed. Friedrich Hultsch. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg0559.tlg016.local001/.