Columbia University Library
MS Or 30,
Uṣūl al-handasah wa-al-ḥisāb, Uqlīdis,
اصول الهندسة والحساب / اقليدس.
Iran?, 1348.
Copy of the Arabic translation of Euclid's Elements
by Nasir ad Din at Tusi

p 163, figure XI.31


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