Create the page "Jr 25" on this wiki! See also the page found with your search.

• 2007 IMO Problems/Problem 4
  pair A=(0,0),B=(c,0),R=(c/2,-sqrt(25-(c/2)^2)); ...angle{OQP}=\angle{OPQ}</math>, construct <math>OJ \bot CR</math>, <math>CJ=JR,JQ=JP,CQ=PR</math> as desired
  8 KB (1,480 words) - 14:52, 5 August 2022