1975 Canadian MO Problems/Problem 5

Problem 5

are four "consecutive" points on the circumference of a circle and are points on the circumference which are respectively the midpoints of the arcs Prove that is perpendicular to .

Solution

None yet!

1975 Canadian MO (Problems)
Preceded by Problem 4	1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 •	Followed by Problem 6