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marți, 17 iunie 2025

Trazo Geometrico Maldito, Alexsander AC, https://www.facebook.com/photo?fbid=10220811120707581&set=gm.1826856031159813&idorvanity=715291165649644

 


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luni, 16 iunie 2025

FB, Trazo Geometrico Maldito, https://www.facebook.com/photo/?fbid=1609031989960973&set=a.1172983803565796, problem 231

 


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marți, 10 iunie 2025

FB page of Hasan Ata, https://www.facebook.com/photo?fbid=8697671933649093&set=a.712949622121404

 


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sâmbătă, 7 iunie 2025

aops, https://artofproblemsolving.com/community/c4t48f4h3579684_a_geometry_problem_to_calculate_the_size_of_an_angle

 


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vineri, 6 iunie 2025

aops, https://artofproblemsolving.com/community/c4t48f4h3585809_geometry

 


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Full solution of https://www.facebook.com/photo/?fbid=1899709203808549&set=a.148394885606665

 Thanking to Alin Cretu, 


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luni, 2 iunie 2025

Unfinished solution of a problem by Thanos Kalogerakis, https://www.facebook.com/photo?fbid=1899709203808549&set=a.148394885606665

 


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Geometria Super Top, Dong le Minh https://www.facebook.com/photo?fbid=4516632665291447&set=gm.2394306588006363&idorvanity=830782544358783

 Note: I came up with the following proof 53 years ago, during an exam; as the majority of solvers used the 3 concurrent circumcircles of th...