There is a given cyclic quadrilateral ABCD with perpendicular diagonals AC and BD intersected at point O.
Through this point passes line perpendicular upon AD. Show it bisects BC.
There is a given cyclic quadrilateral ABCD with perpendicular diagonals AC and BD intersected at point O.
Through this point passes line perpendicular upon AD. Show it bisects BC.
Hint: Show that the triangles OFB, OFC are both isosceles.