{"book":"adl0946","page":239,"text":"۲۳۲\n\n۲۵۸ است که سابقاً حل کردیم فقط یک جواب دارد.\nاگر ضلع مفروض وتر باشد همان طور که در ۲۵۸ و ۲۶۰\nو ۲۶۲ بیان کردیم به نتیجه ذیل می رسیم.\nقضیه- حالت اول دو مثلث قائم الزاویه - هرگاه\nدو مثلث قائم الزاویه در وتر و يك زاویه حاده\nمساوی باشند آن دو مثلث مساویند.\n۲۷۱ - مسئله - از مثلث قائم الزاویه دو ضلع معلوم\nاست آن را رسم کنید.\nاگر دو ضلع\nمفروض اضلاع\nزاویه قائمه باشند.\nآن را در ۲۵۹\nحل کرده ایم\nپس فرض می\nکنیم که دو ضلع مفروض یکی وتر و دیگری یکی از دو ضلع مجاور بزادیه\n۳\nال\nد\nم\nب\nج\nش ۱۹۱","chars":484,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00239.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/adl0946/239","canvas":"https://afghanpress.org/iiif/adl0946/canvas/239","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."}}