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• 1999 USAMO Problems/Problem 6
  Now <math>\angle GFA=\angle GCA=\angle DCA</math>.
  2 KB (324 words) - 20:45, 2 January 2018
• Reaper Archives
  | 113 || GCA || 58 || 33725.051 || 581.466 | 76 || GCA || 19 || 7256.843 || 381.939
  187 KB (10,824 words) - 18:27, 3 February 2022