{"book":"adl0131","page":231,"text":"کتاب\n۲۲۰\nمساحت\n\n(۱۷۴) وقتیکه با جریب پیمائش میکنید باید که احتیاط بسیار داشته\nباشید که جریب مذکور راست و کج و سمت دیگر مبدل نشود و علی العمو\nبجهت صحت خیال دو امر را مد نظر داشته باشید.\nآول. اینکه در اثنای که جریب کش که در پیش است میخ را در زمین\nگور میکند باید که به بسیار غور ملاحظه فرماید که خط مستقیم که در میان\nمیخ مذکور و علم آخری است خط مستقیم مذکور از ان میخ که بالای\nمیخ مذکور جریب کش که در پس است ایستاده است میگذرد.\nدوم اینکه جریب کش که در پس است نیز باید که به بسیار حد\nملاحظه فرماید که بالای میخ مذکور که جریب کش ایستاده است\nخط مستقیم که درمیان میخ مذکور و علم دوم کشیده شده است\nخط مستقیم مذکور باید که از ان میخ که بالای میخ مذکور جریب کش که\nدر پیش است ایستاده است بگذرد.\n(۱۷۵) اگر قطعه زمین بصورت شکل مستقيمة الاضلاع باشد\nو طول","chars":740,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00231.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/231","canvas":"https://afghanpress.org/iiif/adl0131/canvas/231","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."}}