{"book":"adl0946","page":268,"text":"۲۹۱\n\nمی باشد .\nاگر چهار قوس مساوی اَ دَ\nو دَ جَ و جَ طَ و طَ لَ را\nنوک بنوک پهلوی هم قرار\nدهیم می گوئیم که قوس اَ لَ\nچهار برابر قوس اَ دَ یا قوس\nاَ دَ رُبع قوس اَلَ می باشد.\n\nاز آنچه گفتیم اضعاف واجزاء قوس معلوم شد فقط باید\nدانست که مطالب فوق فقط در قوس های یک دائره\nصدق می کند .\n۲۹۵ - اندازهٔ قوسها - برای اندازه گرفتن قسی آنها را\nباقوس دیگری که برای واحد انتخاب کرده اند مقایسه می\nکنند .\nقوسی از هر دائره که برای واحد انتخاب شده باشد فقط\nبرای اندازه قوس های بکار می رود که از همان دائره باشند -","chars":496,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00268.jpg","first_page":1,"last_page":327,"title":"Handasah-ʼi musaṭṭaḥah barā-yi ṣinf-i haftum-i makātib-i rushdīyah, bi-qarār-i prūghram-i Vizārat-i Jalīlah-ʼi Muʻārif-i Afghānistān هندسۀ مسطحه :هندسۀ مسطحه","permalink":"https://afghanpress.org/book/adl0946/268","canvas":"https://afghanpress.org/iiif/adl0946/canvas/268","source":"https://afghanistandl.nyu.edu/books/adl0946/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0946_download.pdf","rights":{"image":{"statement":"Public domain. NYU states: \"All works presented on this website are, unless otherwise indicated, in the public domain. The images available on this website may be freely reproduced, distributed and transmitted by anyone for any purpose, commercial or non-commercial.\"","uri":"http://rightsstatements.org/vocab/NoC-US/1.0/","holder":"New York University Libraries","source":"https://afghanistandl.nyu.edu/about.html","delivery":"Images are served from a copy mirrored by this project, not from NYU's servers, under the reproduction terms above.","endorsement":"This is an independent project. It is not affiliated with, endorsed by, or reviewed by New York University."},"text":{"statement":"Machine-generated transcription, dedicated to the public domain under CC0 1.0. No warranty of accuracy: see the provenance block on every page.","uri":"https://creativecommons.org/publicdomain/zero/1.0/","holder":"Steps Ventures"}},"provenance":{"text_produced_by":"gemini-3.1-pro-preview","thinking_level":"low","read_completed":"2026-08-09","per_page_confidence":null,"per_page_confidence_note":"Not recorded during the corpus run. No calibrated per-page score exists, and none is estimated here.","human_reviewed":false,"accuracy_context":"Roughly two thirds of characters agree with a modern printed edition of the same text. Much of the disagreement is editorial, not misreading. Treat the transcription as a finding aid and read the page image before quoting.","primary_source":"The page image. The text is an index into it."}}