{"book":"adl0131","page":253,"text":"کتاب\n۲۴۲\nمساحت\n\nرقبۀ ذوزنقۀ د س س = ۱/۲ × ۲۹۰ × ۱۲۵ = ۲۸۲۷۵\nرقبۀ مثلث س س الف = ۱/۲ × ۲۴۰ × ۷۰ = ۱۵۴۰۰\nحاصل جمع کل مثلث ها و ذوزنقہ ها = ۳۴۵۰۷۵ پس\nکل رقبہ ۳۴۵۰۷۵ مربع کڑی یا ۳۱۳۰۵۷۵ ایکر یعنی رقبۀ مطلوبه\n۳ ایکر یک روڈ ۱۲ پول -\n(۱۹۲) سرهای خط جریبی را مقام مینامند و بالای سرهای خط جریبی\nاکثر در (فیلد بک) یعنی کتاب پیمائش زمین نشان ۱ ۲ ۳\nمقرر میکنند - و مقامات خطوط جریبی بلحاظ جنوب مشرق شمال\nمغرب نشان کرده نوشته کرده میشوند - و از نشان ۱ شمال\nو ۲ مغرب مطلب این قسم گرفته میشود که خط جریبی از مقام دیگر شروع\nشده بسمت انخط که از جانب شمال بطرف مغرب زاویۀ\n(۵۰ درجه) پیدا میکند - و بعض مراتب بجهت خطوط متواتر جریبی\nنوشتن الفاظ چپ و راست کافی میآید - مثلاً که از ۱ چپ\n\nالاد","chars":670,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00253.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/253","canvas":"https://afghanpress.org/iiif/adl0131/canvas/253","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."}}