{"book":"adl0131","page":291,"text":"کتاب ٢٨٠ مساحت\nطول خط مذکور معلوم شد ترکیب مذکورہ را مساحای جوان نسبت\nترکیب ہائیکہ بر مثلث های مشابه یا عمود ہا مبنی اند بسیار آسان و قابل\nاعتبار می داند- بذریعه ترکیب خطبندس مذکوره مثلث فرضاً\nہر قدر که مطلوب داشته باشید کلان و قریباً مثلث متساوی الاضلاع\nساخته میتوانید مگر باید که در ترکیب مذکوره و در ترکیب هائیکه بر\nمثلث های مشابه منحصراند زاویه های مثلث ہا باید که بسیار خورد\nساخته نشود۔\n(٢١٢) در جائیکه ممانعت یاست به راه بسیار خورد باشد بذریعه\nاستعمال ترکیب عمود ہا کفایت وقت دستیاب میشود۔ مثلاً\nکه در شکل مذکوره که کشیده شده است بالای نقطہ ب و ج عمود\nقایم کنید- و عمود ب ی و ج ف را باید که بذریعه (کراس)\nآله که در پیمایش زمین استعمال کرده میشود- ساخته شود و بایکی\nب ی و ج ف را با هم برابر و کم از کم طول خطوط مذکوره اینقدر معین\nکرده شور","chars":743,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00291.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/291","canvas":"https://afghanpress.org/iiif/adl0131/canvas/291","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."}}