{"book":"adl0290","page":581,"text":"۱۱۱\n\nطول سنگ ۱/۲ ۴ انچ و عرض آن ۳ انچ است\nمثال ۱ ضلع آن مربع که مساحت آن ۹۱ مربع\nفٹ ۱۲۱ مربع انچ است چه قدر میباشد ؟\nمساحت = ۱۲۱ مربع انچ ۹۱ مربع فٹ = ۱۳۲۲۵ مربع انچ\n∴ ضلع = ۱۳۲۲۵√ انچ = ۱۱۵ انچ = ۷ انچ - ۹ فٹ\nمثال ۲ وتر آن چمن مستطیل را دریافت نمائید\nکه ۱۶ گز طول و ۱۲ گز عرض دارد -\nوتر = ۲(۱۶) + ۲(۱۲)√ گز = ۲۵۶ + ۱۴۴√ گز =\n۴۰۰√ گز = ۲۰ گز\nمثال ۳ مساحت اوطاق که طول آن دو چند عرض\nاست ۲۶ مربع گز ۸ مربع فٹ است پس طول\nآن را معلوم کنید\nاوطاق مذکور را در دو مربع   مربع فٹ | مربع فٹ\nمساوی تقسیم میتوانیم کرد که   ۱۲۱ | ۱۲۱\nهر ضلع مربع مساوی عرض اوطاق باشند\nمساحت یک مربع = ۱۳ مربع گز ۴ مربع فٹ\n= ۱۲۱ مربع فٹ\n∴ ضلع یک مربع = ۱۲۱√ فٹ = ۱۱ فٹ\n∴ عرض اوطاق = ۱۱ فٹ = ۳ گز ۲ فٹ","chars":669,"image":"https://storage.googleapis.com/adl-page-images/adl0290/00581.jpg","first_page":1,"last_page":1089,"title":"ʻIlm-i ḥisābعالم حساب","permalink":"https://afghanpress.org/book/adl0290/581","canvas":"https://afghanpress.org/iiif/adl0290/canvas/581","source":"https://afghanistandl.nyu.edu/books/adl0290/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0290_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."}}