Neocijenjeno
Sept. 18, 2023, 9:02 p.m. (9 months)
Let O be the circumcenter and H the orthocenter of an acute triangle ABC. Show that there exist points D, E, and F on sides BC,CA, and AB respectively such that OD + DH = OE +EH = OF +FH and the lines AD, BE, and CF are concurrent.
Warning: You haven't solved this problem yet.
Click here to display the solution.