{"book":"adl0946","page":116,"text":"۱۰۹\nقطعه خط مستقیم خطی است که بر وسط آن عمود باشد ر ۱۳۱.\nو نیز منصف هر زاویه محور تناظری برای آن زاویه\nاست.\n۱۳۳ - تبصره - شکلی که دارای محور تناظر باشد بعد\nاز بر گردانیدن نیز بر خودش منطبق می شود ( ۱۳۲ )\nپس چنین اشکال هم مستقیماً و هم معکوساً با هم مساویند.\nامثله\n۱ - مثلثی مانند ا ب ج د رسم کرده زوایای آن را با نقاله اندازه\nبگیرید بعد این کار را در ۱۰ مثلث مختلف بجا آورده\nنتائج حاصله را با هم مقایسه نمایند.\n۲ - دائرہ و خطی مفروض است تناظر مجموعۀ آن ها را\nتحصیل کنید.\n۳ - دائرہ و نقطۀ مفروض است تناظر مجموعۀ آنها را\nتحصیل کنید.","chars":530,"image":"https://storage.googleapis.com/adl-page-images/adl0946/00116.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/adl0946/116","canvas":"https://afghanpress.org/iiif/adl0946/canvas/116","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."}}