{"book":"adl0946","page":219,"text":"۲۱۲\nمثلث متساوی الساقینی تشکیل شده که در آن دو زاویه\nل ا د و دل ا با هم مساویند زاویه ا ل د نسبت بمثلث ا ل ح\nخارجی است پس از زاویه ح بزرگتر است (ع ۲۴)\nبنا بر این مساوی آن یعنی زاویه ل ا د از ح بزرگتر\nخواهد بود پس به طریق اولی زاویه ا از زاویه ح بزرگتر\nاست پس ۔\nقضیه - هر گاه در مثلثی دو ضلع غیر مساوی\nباشند زاویه مقابل بضلع اعظم بزرگتر است از\nزاویه مقابل بضلع اصغر -\n۲۸ قضیه عکس - هر گاه در مثلث ا ج د زاویه\nا بزرگتر از زاویه ح باشد ضلع مقابل بآن یعنی د ح\nهم از د ا بزرگتر است زیرا که اگر کوچک تر باشد لازم\nمی آید زاویه او هم کوچک تر از زاویه ح باشد و این خلاف\nفرض است پس می گوئیم ۔\nقضیه عکس - هر گاه در مثلثی دو زاویه غیر","chars":622,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00219.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/adl0946/219","canvas":"https://afghanpress.org/iiif/adl0946/canvas/219","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."}}