{"book":"adl0131","page":36,"text":"کتاب\n٢٥\nمساحت\n\nج الف و الف ب\nعلیحده علیحده سه چند خواهند بود و علی هذا القیاس\nاینچنین دو مثلث ها را متشابه مثلث میگویند\n٣٥- فرض کنید که الف ب ج و دی ف دو متشابه مثلث اند که زاویہای\nج و ف با هم برابر اند و از نقطه های رج و ف ج غ و ف ه فرضا بر اضلاع\nمقابل عمود اند پس ج غ را از الف ب آن نسبت خواهد بود که ف ه را\nاز دی است\n\n٣٦- فرض کنید که الف ب ج یک مثلث است که در متوازی ضلع\nب ج دی خط مستقیم کشیده است که از دو ضلاع باقی مثلث الف ب و الف ج\nبر نقطه های د و ی تقاطع میکند - پس\nمثلث الف ب ج و الف دی با هم متشابه خواهند بود- (دفعه ۲ را ملاحظه کنید)\n٣٧- فرض کنید که الف ب ج مثلث قائمہ الزاویہ است و از زاویہ قائمہ\nالف د عمود بر و تر کشیده شده است - پس از مثلث های د ب الف","chars":666,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00036.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/36","canvas":"https://afghanpress.org/iiif/adl0131/canvas/36","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."}}