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• 15:22, 13 November 2007 Minsoens (talk | contribs) uploaded File:AIME 1992 Solution 10.png (defaultpen(fontsize(8)); path kt = arc((20,0),20,0,90)..arc((0,20),20,0,90)--(40,40)--cycle; fill(kt,gray); draw((0,-30)--(0,50));draw((-30,0)--(50,0)); draw(circle((20,0),20));draw(circle((0,20),20)); draw((40,0)--(40,40)--(0,40)); label("$a$",(50,0),(2,)