{"book":"adl0919","page":105,"text":"۹۲\n\n«طاس تخته نرد» و هرگاه بر یک جسم یک چنان سطح\nمستدیری احاطه نموده باشد که در مغز مغز انحجسم گنجان\nنقطه یافتن ممکن باشد که هرچند خطوط مستقیمه که از\nنقطه به آن سطح مستدیره برآورده شوند، آنها باهم\nبرابر باشند، آنجسم را کره گویند، وزاویه عبارت ازان\nتیزی سطحیست که از تلاقی دو خط مستقیم پیدا شود\nچنانکه یک خط با خط دیگر برسد و هر دو یک خط نشوند، پس آن\nکنج تیز سطح، که از ملاقات این دو خط پیدا شود آنرا\nزاویه گویند، پس اگر یک خط بر دیگری چنین بیفتد که آن\nدو زاویه که از دو پهلوی آن پیدا شوند هردو برابر\nباشند، هر کدام آنها را زاویه قایمه و آن خط ایستاده را عمود گویند","chars":564,"image":"https://storage.googleapis.com/adl-page-images/adl0919/00105.jpg","first_page":1,"last_page":181,"title":"Ṭarz-i amānī dar taʻlīm-i ibtidāʼi ʻaskar-i ummī طرز امانى در تعليم ابتدائى عسکر امى","permalink":"https://afghanpress.org/book/adl0919/105","canvas":"https://afghanpress.org/iiif/adl0919/canvas/105","source":"https://afghanistandl.nyu.edu/books/adl0919/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0919_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."}}