{"book":"adl0131","page":246,"text":"کتاب ۲۳۵ مساحت\n\nدریافت کردن طول ها که می افتد بحصه قسم طول های مذکور\nمعلوم کرده میشوند ـ چند تمثیلات را برای مشق حل کرده مینویسیم\n\n(۱۸۸) تمثیلات\n(۱) قاعده یک مثلث ۱۳/۲ جریب و ارتفاع ۸/۳ جریب است\nپس رقبه مثلث مذکور را معلوم کنید ـ\n\n۱/۲ x ۱۳/۲ x ۸/۳ = ۵۴/۷۸\n\nپس رقبه زمین مذکور ۵۴/۷۸ مربع جریب یعنی ۵/۴۷۸ ایکڑ یا\n۵ ایکڑ یک روڈ ۴۸ و ۲ پول رقبه مطلوب است ـ\n(۲) الف ب ج یک زمین بشکل ذو اربعة الاضلاع است\nو بالای وتر الف ب ـ ج پ و د ق عمود اند\nالف پ = ۱۱۲ کڑی\nالف ق = ۴۴۸ و\nالف ب = ۶۲۶\n[diagram]\nج د\nب ق پ الف","chars":503,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00246.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/246","canvas":"https://afghanpress.org/iiif/adl0131/canvas/246","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."}}