{"book":"adl0946","page":24,"text":"۱۷\nمیگوئیم قطعه خط ان پنج برابر قطعه خط اج است و اج خمس\nان می باشد.\nبرای اندازه گرفتن یک قطعه خط آن را با یک قطعه خط دیگر\nکه برای وحدت انتخاب کرده اند مقایسه می نمایند غالباً این واحد\nهمان متر است که در حساب مذکور است و متری که ما در مدرسه\nاستعمال می کنیم ستاره است که کنار آن به ده قسمت مساوی\nموسوم به دیسیمتر تقسیم شده و هر یک از آنها به ده سانتی متر وغیره\nولی ما در اینجا واحد را سانتی متر قرار میدهیم زیرا که بعدها برای\nاندازه در ترسیمات هندسی هم بسیار مفید است.\nاگر قطعه خطی مقابل با چهار قسمت سانتی متری ستاره ما باشد\nمیگوئیم طول آن چهار سانتی متر است و یا آنکه اندازه آن ۴\nاست در صورتی که واحد سانتی متر باشد.\nنتیجه هر اندازه بالطبع دارای دو قسمت است.\nاول- ذکر واحد منتخبه.\nدوم- بیان عددی که معلوم می کند آن قطعه خط چند برابر واحد","chars":737,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00024.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/adl0946/24","canvas":"https://afghanpress.org/iiif/adl0946/canvas/24","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."}}