διὰ τῶν Γ, ∠, γίνεται τρίγωνον ἔχον δύο ὑποτεινούσας, ὧν ἡ ἐκτὸς ὑποτείνουσα μείζων γίνεται τῆς ἐντός, ὑπετέθη δὲ ἴση.
Scholia in opticorum recensionem Theonis (scholia vetera). Scholia in Euclidem. ed. Johan Ludvig Heiberg, ed. H. Menge. United States. 2018.
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