Take six circles in a chain that are tangent to a seventh circle and also tangent to their neighbors. Then the three lines drawn between opposite pairs of the points of tangency on the seventh circle all pass through the same point.
Τράπεζα Θεμάτων Πανελλαδικών Εξετάσεων
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου