{"book":"adl0946","page":25,"text":"۱۸\nاست پس بطور کلی میگوئیم.\nاندازۀ هر قطعۀ خط عددی است که معین\nمیکند آن قطعه خط چند برابر واحد است .\n۲۲ - تا حال آنچه گفتیم در صورتی بود که اندازۀ قطعۀ خطی\nصحیح باشد ممکن است هرگاه چندین سانتی متر را پهلوی یکدیگر\nقرار دهیم هرگز مساوی با قطعه خط مفروضی نشود مثلاً در سر ۲۴\nقطعه خط ا د بزرگتر از چهار سانتی متر و کوچک تر از پنج سانتی متر\nاست . د ج ا\nسر ۲۴\nفرض میکنیم نقطۀ ج سر چهار سانتی متر باشد اگر ستارۀ ما\nبه میلیمتر هم قسمت شده باشد معلوم می شود که اندازۀ قطعه دج\n۳ میلیمتر یا ۳/۱۰ سانتی متر است پس بر روی هم اندازۀ قطعۀ\nخط ا د مساوی با ۳/۱۰ + ۴ یا ۴ و ۳/۱۰ سانتی متر است .\nاگر برای اندازه گرفتن قطعه خط دج بهمان اشکالی که برای\nاندازۀ ا د برخورده بودیم بر خوریم چون ستارۀ ما اندازۀ کمتر از\nمیلیمتر ندارد بنابر این مثلاً ممکن است که اندازۀ قطعۀ خط ما","chars":752,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00025.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/adl0946/25","canvas":"https://afghanpress.org/iiif/adl0946/canvas/25","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."}}