# Apotelesmatica (= Tetrabiblos) 2-12

Claudius Ptolemaeus, Apotelesmatica (= Tetrabiblos), ΚΛΑΥΔΙΟΥ ΠΤΟΛΕΜΑΙΟΥ ΤΩΝ ΠΡΟΣ ΣΥΡΟΝ ΑΠΟΤΕΛΕΣΜΑΤΙΚΩΝ ΒΙΒΛΙΟΝ Α΄, ιδ΄. Περὶ τῶν δωδεκατημορίων.. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/claudius-ptolemaeus/apotelesmatica-tetrabiblos/2-12
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CTS URN: urn:cts:greekLit:tlg0363.tlg007:2-12

δι’ ἣν δὲ αἰτίαν αὗται μόναι τῶν διαστάσεων παρελήφθησαν, ἐκ τούτων ἂν μάθοιμεν. τῆς μὲν γὰρ κατὰ διάμετρον αὐτόθεν ἐστὶν ὁ λόγος φανερός, ἐπειδήπερ ἐπὶ μιᾶς εὐθείας ποιεῖται τὰς συναντήσεις. λαμβανομένων δὲ τῶν δύο μεγίστων καὶ διὰ συμφωνίας μορίων τε καὶ ἐπιμορίων, μορίων μὲν πρὸς τὸ τῶν β΄ ὀρθῶν τοῦ τε ἡμίσους καὶ τοῦ τρίτου τὸ μὲν εἰς δύο τὴν τοῦ τετραγώνου πεποίηκε, τὸ δὲ εἰς τριά τὴν τοῦ ἑξαγώνου καὶ τὴν τοῦ τριγώνου·

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Claudius Ptolemaeus, Apotelesmatica (= Tetrabiblos), ed. Franz Johannes Boll, Emilie Boer. 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/tlg0363.tlg007.local001/.