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  • ...ons of <math>p_a</math>, <math>p_b</math>, <math>p_c</math> over the angle bisectors of angles <math>A</math>, <math>B</math>, <math>C</math>, respectively. [[File:2011 USAMO 5.png|400px|right]]
    54 KB (9,416 words) - 07:40, 18 April 2024
  • ==Symmetry with respect angle bisectors== [[File:Bisectors 1.png|350px|right]]
    19 KB (3,291 words) - 12:44, 6 October 2024
  • ...with <math>\angle A = 60^\circ, AD, BE,</math> and <math>CF</math> be its bisectors, <math>P, Q</math> be the projections of <math>A</math> to <math>EF</math> [[File:2024 final 9 5.png|350px|right]]
    46 KB (7,965 words) - 14:29, 17 November 2024