{"book":"adl0131","page":25,"text":"کتاب ١٤ مساحت\n\nو هر دو بانجام او بر محیط باشند\nنصف دایره آن شکل است که آن حصه قطر دایره که از قطر قطع میشود\nاحاطه کرده باشد هر یک حصه محیط را قوس میگویند. وتر دایره\nآن خط مستقیم را گویند که به انجام های قوس یکجا کرده شوند.\nقطع دایره آن شکل است که ازان حصه وتر و محیط که او را وتر قطع کرده است\nمحیط باشد قطاع دایره آن شکل است که با دو نصف قطر و یا در میانی قوس ا نهو\nانها محدود باشد. زاویه که از دو نصف قطر ها\nتیار میشود. آنرا قطاع زاویه میگویند\nمنطقه دایره آن حصه دایره است که درمیان دو متوازی وتر ها\nواقع باشد\n\nفصل دوم مثلجات مهندسیه\n\n١٦- بعض ضروری مثلجات علم هندسه را بیان می نمائیم برای\nطالب العلم یاد کردن اینها فائده بسیار خواهد بخشید. ثبوت این مسئله\nدر علم اقلیدس","chars":669,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00025.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/25","canvas":"https://afghanpress.org/iiif/adl0131/canvas/25","source":"https://afghanistandl.nyu.edu/books/adl0131/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0131_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."}}