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  • ...ion of the circumcircles of <math>\triangle AMN</math> and <math>\triangle ADE</math>. Ray <math>AP</math> meets <math>BC</math> at <math>Q</math>. The ra
    8 KB (1,246 words) - 21:58, 10 August 2020
  • ...ion of the circumcircles of <math>\triangle AMN</math> and <math>\triangle ADE</math>. Ray <math>AP</math> meets <math>BC</math> at <math>Q</math>. The ra ...ince <math>Q</math> lies on the radical axis of <math>(AMN)</math>, <math>(ADE)</math> thus <cmath>\frac{BQ}{CQ}=-\frac{f(B)}{f(C)}=-\frac{BN\cdot BA-BE\c
    9 KB (1,523 words) - 15:24, 21 November 2023
  • ...</math>. If there exists a point <math>P</math> outside of <math>\triangle ADE</math> such that <math>AP=PD=28</math>, and there exists a point <math>O</m [[G285 2021 MC-IME I Problem 1|Solution]]
    9 KB (1,577 words) - 23:28, 28 June 2021
  • ...ete quadrilateral. In the diagram these are <math>\triangle ABC, \triangle ADE, \triangle CEF, \triangle BDF.</math> <math>AD||GF \implies \angle ADE + \angle DFG = 180^\circ \implies \angle ADE + \angle AME = 180^\circ \implies</math>
    6 KB (976 words) - 23:10, 28 October 2023