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sâmbătă, 12 martie 2022

Geometria Top, Yuri Pereira, https://www.facebook.com/photo/?fbid=2154032388068533&set=gm.1157913481645686

 


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Nice problem, lost source, again

 Today I saw an old problem on fb geometry sites, with a very nice solution bearing the inconfoundable signature of Master Hasan Ata; attach...