Pappus Alexandrinus
,
Mathematical Collection, Book 8
,
1876
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[Figure 11]
Page: 31
[Figure 12]
Page: 32
[Figure 13]
Page: 34
[Figure 14]
Page: 35
[Figure 15]
Page: 36
[Figure 16]
Page: 37
[Figure 17]
Page: 41
[Figure 18]
Page: 48
[Figure 19]
Page: 51
[Figure 20]
Page: 52
[Figure 21]
Page: 53
[Figure 22]
Page: 54
[Figure 23]
Page: 55
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μιᾶς ὀρθῆς καὶ γ#. </
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<
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ἴσην ἔχοντα τὴν ἐκ τοῦ κέντρου τῇ ΑΖ εὐθείᾳ, καὶ διαγά-
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γωμεν ἀπὸ τοῦ κέντρου αὐτοῦ τὴν ΗΞ εὐθεῖαν, καὶ ἴσην
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θῶμεν τῇ ΖΒ τὴν ΗΛ εὐθεῖαν, καὶ πρὸς τῇ ΗΛ εὐθείᾳ
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καὶ τῷ Λ σημείῳ ἴσην γωνίαν συστησώμεθα τὴν ὑπὸ ΗΛΝ
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τῇ ὑπὸ ΖΒΑ, καὶ ἐπιζεύξωμεν τὴν ΗΝ, ἰσογώνιον γίνεται
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τὸ ΗΛΝ τρίγωνον τῷ ΑΖΒ τριγώνῳ. </
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<
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ἴση τῇ ΗΝ· ἴση ἄρα καὶ ἡ ΝΛ τῇ ΑΒ. </
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ἀπὸ τῆς ἴσης τῇ ΑΒ εὐθείας γίνεται ἡ τῶν ζ# εἰς τὸν
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κύκλον ἑξαγώνων ἐγγραφή.
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<
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">Πῶς δὲ καὶ ἡ τῶν προειρημένων τυμπάνων γίνεται
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παράθεσις, νῦν ἐροῦμεν.
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<
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">Ἔστω γὰρ δύο τύμπανα ἔντορνα καὶ παρακείμενα ἀλ-
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λήλοις τὰ Α Β, καὶ ἔστω ὡς ἡ διάμετρος τοῦ Α πρὸς τὴν
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