Create the page "Afo" on this wiki! See also the search results found.

• 2008 USAMO Problems/Problem 2
  ...- (180 - \angle BAC) - (90 + \angle BAC) = 90</math>. Then <math>\triangle AFO</math> is a right triangle. ...oint of <math>AO</math>, which is also the circumcenter of <math>\triangle AFO</math>, so <math>A,P,N,F,O</math> all lie on a circle.
  18 KB (3,253 words) - 18:27, 1 December 2021
• 2017 AMC 8 Problems/Problem 22
  ...e short leg of <math>AFO</math> is <math>r</math>. Because <math>\triangle AFO</math> ~ <math>\triangle ABC</math>, we have <math>r/(12 - r) = 5/13</math>
  5 KB (762 words) - 03:46, 22 April 2024
• 2022 AIME I Problems/Problem 11
  Construct <math>EF</math>, <math>FG</math>. <math>\angle AFO = \angle AEO = 90^{\circ}</math>, so <math>AEOF</math> is cyclic. Similarly
  16 KB (2,517 words) - 20:22, 31 January 2024
• 2021 AIME II Problems/Problem 13
  ~Afo
  16 KB (2,240 words) - 23:16, 26 January 2024
• 2021 AIME II Problems/Problem 15
  ~Afo
  14 KB (2,569 words) - 09:28, 28 March 2024