{"book":"adl0946","page":31,"text":"۲۴\nکه نیم خط هستند بنابرین به تعریف ذیل میرسیم :-\nزاویه شکلی است که حاصل میشود از دو نیم خط\nکه مبداء شان مشترک باشد .\n۳۱ - اگر کلمۀ از تعریف مذکور تغییر کند غلط می شود و تقریباً\nتمام تعریفهای هندسی همین طور است مثلاً اگر بگوئیم :\nزاویه شکلی است حاصل از دو خط مستقیم که یک نقطۀ\nمشترک داشته باشند درین صورت س۲۹\nدر نظر ما مجسم می شود که مقصود ما نیست - و\nنیز اگر بگوئیم : زاویه شکلی است حاصل از دو\nنیم خط که یک نقطۀ مشترک داشته باشند\nس۳ ممکن است در نظر ما بیاید که شباهتی س۲۹\nبه س۲۸ ندارد .\n۳۲ - تعیین زاویه - برای تعیین\nیک زاویه ابتدا یک نقطه از یک ضلع بعد\nاز ان نقطۀ راس و سپس نقطۀ از ضلع س۳۰","chars":591,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00031.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/adl0946/31","canvas":"https://afghanpress.org/iiif/adl0946/canvas/31","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."}}