{"book":"adl0131","page":27,"text":"کتاب\n١٦\nمسئله جات که بطریق نمونه نوشته شده اند برای وسعت ایم\nنتیجه ها وجهته خیال کردن مختلف اقسام های آن کافی خواهد بود. عوم\nاز چند ابتدائی اصول علم هندسه پیدا میشوند باید که طالب العلم\nاز فهمیدن آن درین مضمون رغبت بسیار پیدا نماید و از تحریرات\nظاهر میشود که از دفعات (١٨) تا (٢١) بیان زاویه خواهد بود\nو از دفعه (٢٢) تا (٢٧) ذکر مثلث ها خواهد بود و از دفعه (٢٨)\nتا (٣٠) حال مساوات رقبه خواهد بود و از دفعه (٣١) تا (٣٢)\nخواص دائر ها نوشته شده اند ـ و از دفعه (٣٣) تا (٣٨)\nبیان مثلث متشابه خواهد بود ـ\n١٨ ـ فرض کنید که یک خط مستقیم الف ب\nهمراه دیگر خط مستقیم ج د بهمان یکطرف او\nالف ب ج و عطف الف ب د دو زاویه ها میسازد و این هر دو زاویه ها\nیکجاشده برابر دو قائمه خواهند شد\n١٦ ثبوت","chars":678,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00027.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/27","canvas":"https://afghanpress.org/iiif/adl0131/canvas/27","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."}}