{"book":"adl0131","page":183,"text":"کتا\n۱۷۲\nمساحت\n\n(۲۱) وتریک ذواربعة الاضلاع ۸۸ گزست و بروتر مذکور از زوایا\nمقابل عمود ها که کشیده شوند ۳۰ گز و ۲۵ گز اند پس رقبه شکل\nمذکور را معلوم کنید۔\n۱/۲×۸۸×۳۰ = ۱۳۲۰ و\n۱/۲×۸۸×۲۵ = ۱۱۰۰\nو مجموعه ۱۳۲۰ + ۱۱۰۰ = ۲۴۲۰\nپس رقبه ذواربعة الاضلاع ۲۴۲۰ مربع گز یا ۱/۲ ایکیڑ مطلوب است\n(۱۴۷) ظاهر است که در تمثیلات دفعه مذکوره بجائی دریافت\nکردن جداجدا رقبه های هر دو مثلث ها رقبه ذواربعة الاضلاع\nبذریعه قاعده مندرجه ذیل نیز دریافت کرده میشود۔\nقاعده\nنصف مجموعه عمود ها و حاصلضرب و تر رقبه مطلوب خواهد بود\nپس در اول مثال دفعه (۱۴۶) مجموعه عمود ها ۷ فُٹ است پس\n\n۱/۲×۱۲×۷","chars":557,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00183.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/183","canvas":"https://afghanpress.org/iiif/adl0131/canvas/183","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."}}