{"book":"adl0946","page":232,"text":"۲۲۵\nج د متناظره اند پس دو مثلث ا ج د و اَ جَ دَ که بدست آمده با هم\nمساویند و مسئله بیش از یک جواب ندارد.\n۲۶۲ - حالت سیم تساوی دو مثلث - اگر و مسئله فوق\nخط دیگری مانند جَ دَ رسم کرده مثلث را بر آن بنا میکنیم بعد این مثلث\nرا برداشته بر روی مثلث ا ج د قرار میدهیم بقسمی که ضلع\nدَ جَ بر روی د ج واقع شود یقین داریم که رأس اَ نیز\nبر روی ا واقع شده این دو مثلث مساوی می گردند پس\nمیگوئیم:-\nقضیه - هر گاه سه ضلع مثلثی نظیر به نظیر مساوی\nبا سه ضلع مثلث دیگر باشد آن دو مثلث مساویند\n۲۶۳ - تبصره - مسائلی که ار ۲۵۷ تا حال حل کردیم\nبما نشان میدهد که اگر سه جزو مثلث که خوب انتخاب شده باشند در\nدست داشته باشیم مثلث خوب بر ما معلوم می شود و سایر اجزاء\nآن بدست می آید زیرا که می توانیم مثلث را رسم نمائیم.\nپس واضح است که برای ترسیم مثلثی داشتن چهار جزء آن\n\nکتابیبه هندسه مسطحه - مکبر گل کاتب","chars":776,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00232.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/adl0946/232","canvas":"https://afghanpress.org/iiif/adl0946/canvas/232","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."}}