# Scholia in opticorum recensionem Theonis (scholia vetera) 60

Scholia in Euclidem, Scholia in opticorum recensionem Theonis (scholia vetera), Section 60. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/scholia-in-euclidem/scholia-in-opticorum-recensionem-theonis-scholia-vetera/60

60. Αἱ διάμετροι ἴσαι p. 202, δῆλον δέ, ὅτι οὐ πᾶσαι πάσαις αἱ διάμετροι ἴσαι φανήσονται, ἀλλὰ μία μιᾷ, οἷον τῇ ΕΓ ἡ ∠Β· αὕτη γὰρ μόνη δύναται ἴσας γωνίας περιέχειν μετὰ τῆς ΑΖ ταῖς περιεχομέναις ὑπὸ τῆς ΑΖ καὶ ΕΓ· τοῦτο δὲ διὰ τὸ μὴ εἶναι πρὸς ὀρθὰς τῷ ὑποκειμένῳ ἐπιπέδῳ τὴν ΖΑ. Ad prop. XXXVI.

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Scholia in Euclidem, Scholia in opticorum recensionem Theonis (scholia vetera), ed. Johan Ludvig Heiberg, H. Menge. 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/tlg5022.tlg004.local001/.