Κυριακή 22 Ιανουαρίου 2012

BROCARD PRIZE



Let ABC be a triangle and Ka, Kb, Kc the Brocard axes of
the triangles GBC, GCA, GAB, resp.

Let A'B'C' be a triangle homothetic and sharing the same
centroid G with ABC.

Conjecture:

The reflections La,Lb,Lc of Ka,Kb,Kc in the sidelines B'C', C'A',
A'B' of A'B'C' resp. are concurrent.

See: ANOPOLIS list, Message 137

The first who will send a solution (synthetic or not) to list HYACINTHOS will win the book: F.G.-M.: Exercices d' Algebre (1198 pages)



Good Luck!

Δεν υπάρχουν σχόλια:

Δημοσίευση σχολίου

ETC

X(72939) = X(1)X(15111)∩X(34152)X(63631) Barycentrics    a^2*(a^20-6*a^18*b^2+15*a^16*b^4-20*a^14*b^6+14*a^12*b^8-14*a^8*b^12+20*a^6*b^1...