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miercuri, 12 ianuarie 2022

Nelson Tunala, Geometria y Trigonometria Magistral, https://www.facebook.com/photo/?fbid=4676493092419131&set=gm.3275111282718308


 

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marți, 11 ianuarie 2022

S.R. Peru Geometrico, https://www.facebook.com/photo/?fbid=10220478942796672&set=gm.3156509071128631


 

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luni, 10 ianuarie 2022

Trainhttps://www.facebook.com/groups/293155508611436/?multi_permalinks=617228049537512¬if_id=1641758049928886¬if_t=group_activity&ref=notifing Geometry Olympiad,


 

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sâmbătă, 8 ianuarie 2022

Binh Luc, Training Geometry Olympiad, https://www.facebook.com/photo/?fbid=2744416309192869&set=gm.613388303254820


 

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duminică, 2 ianuarie 2022

TGO - Hamed Cvv, https://www.facebook.com/photo/?fbid=313254147191478&set=g.293155508611436


 

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sâmbătă, 1 ianuarie 2022

aops, Saudi Test 2010, https://artofproblemsolving.com/community/c6t48f6h2745136_dm_gt_ab2_if__ltb__gt__2lt_c

 


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Geometria Top, Naibe Oliveira, https://www.facebook.com/photo?fbid=443977443880868&set=gm.1113759326061102


 

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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...