# Scholia in Euclidis optica (scholia vetera) 16

Scholia in Euclidem, Scholia in Euclidis optica (scholia vetera), Section 16. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/scholia-in-euclidem/scholia-in-euclidis-optica-scholia-vetera/16

16. Ἡ ΑΡ ἄρα ἐπὶ τὴν ΡΞ p. 10, διὰ τὸ δειχθὲν παρὰ τοῦ Πάππου λημμάτιον ἐν τοῖς εἰς τὰ Ὀπτικὰ Εὐκλείδου· ἐὰν ἀπὸ μετεώρου σημείου ἐπὶ τὸ ὑποκείμενον ἐπίπεδον κάθετος ἀχθῇ, ἀπὸ δὲ τοῦ σημείου, καθʼ ὃ προσβάλλει τῷ ἐπιπέδῳ ἡ κάθετος, ἀχθῇ πάλιν κάθετος πρός τινα εὐθεῖαν ἐν τῷ ἐπιπέδῳ οὖσαν, καὶ ἡ ἀγομένη ἀπὸ τοῦ μετεώρου σημείου ἐπʼ αὐτὴν κάθετος ἔσται .

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Scholia in Euclidem, Scholia in Euclidis optica (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.tlg003.local001/.