{"book":"adl0946","page":36,"text":"۲۹\nروی یک دیگر واقع نشوند آن وقت تلی آن را خوب نشان کرده\nکاغذ را باز می کنیم کنار کاغذ با تای آن مانند س ۳۷ میشود درینجا\nدو زاویه مجاوره ج ه د و ه ا با همدیگر مساوی هستند زیرا که\nبرای تا کردن کاغذ آنها را بر\nیک دیگر منطبق نموده ایم دو ضلع\nخارجی یا غیر مشترک آن ها بر\nیک خط مستقیم واقع شده\nاند حال هر یک از این دو زاویه\nرا یک زاویه قائمه مینامند پس می گوئیم :\nهر گاه در دو زاویه مجاوره مساوی دو ضلع\nغیر مشترک بر يك خط مستقیم واقع شوند هر\nيك از آنها يك زاویه قائمه است .\n۳۷ - از روی تعریف مذکور هرگاه دو زاویه قائمه در مجاورت\nیک دیگر واقع شوند اضلاع خارجی انها بر استقامت یک خط\nواقع می شوند .","chars":590,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00036.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/adl0946/36","canvas":"https://afghanpress.org/iiif/adl0946/canvas/36","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."}}