{"book":"adl0131","page":238,"text":"کتاب\n۲۳۴\nمساحت\n\nشده بخوبی ملاحظه فرماید که نقطه و که بر سر ریسمان بر نقطه مذکوره د است\nدر راست نقطه الف است و بهمین قسم شخص دیگر در راست\nخط الف ب از نقطه ب پس شده ملاحظه فرماید که نقطه ی\nکه دیگر سر ریسمان بر نقطه مذکوره ی است در راست نقطه ب است\n(۱۸۰) در یک خط مستقیم معلوم یک نقطه معینه است\nاز نقطه معینه مذکور هر خط که زاویه های قائمه ساخته با خط\nمستقیم معلوم کشیده شود مقام خط مذکور را دریافت کنید\nفرض کنید که الف ب خط مستقیم\nوف نقطه معینه اندرون خط  [diagram: ب ی د و]\nمستقیم است - دو خطوط د و ی در خط الف ب را\nاینطور معین کنید که خط ف د وف ی با هم برابر باشند\nبعده از خط د ی یک ریسمان در طول دراز بگیرید و ریسمان\nمذکور را بدو حصص برابر تقسیم کرده هر دو سر های ریسمان","chars":670,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00238.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/238","canvas":"https://afghanpress.org/iiif/adl0131/canvas/238","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."}}