vineri, 19 aprilie 2024
miercuri, 17 aprilie 2024
2 problems, https://artofproblemsolving.com/community/c4t48f4h3300850_geometry
See attached, synthetic solutions for the 2 problems posted there
duminică, 31 martie 2024
Binh Luc, Peru Geometrico, https://www.facebook.com/photo/?fbid=10228034844329488&set=gm.7197648463681318&idorvanity=400828670030032
See the drawing and explanation attached.
Best regards.
joi, 28 martie 2024
marți, 26 martie 2024
Binh Luc, Peru Geometrico, https://www.facebook.com/photo?fbid=10228018747607080&set=gm.7182812301831601&idorvanity=400828670030032
Inside the square ABCD there is a square DEFG so that [ABP]=[CGFP]+[AFE].
Proof and drawing, attached.
vineri, 15 martie 2024
joi, 14 martie 2024
Art of problem solving, https://artofproblemsolving.com/community/c6t48f6h3275951_xmxa_if_ltbax2_lt_xba_ltxac2_ltac_x
Attached, my solution to subject problem
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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...
