Art of Problem Solving
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1967 IMO Problems/Problem 4: Revision history

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10 November 2024

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3 September 2024

29 January 2021

1 August 2020

26 February 2018

19 July 2016

20 October 2013

  • curprev 10:4210:42, 20 October 2013 Elvis talk contribs 357 bytes +357 Created page with "Let A0B0C0 and A1B1C1 be any two acute-angled triangles. Consider all triangles ABC that are similar to ¢A1B1C1 (so that vertices A1;B1;C1 correspond to vertices A;B;C; respecti..."