A point Of is taken inside a quadrilateral ABCD such that it's distances from the angular points D and B are equal. Show that OA and OC are in one and same straight line.

A point Of is taken inside a quadrilateral ABCD such that it's distanc

1.	A point Of is taken inside a quadrilateral ABCD such that it's distances from the angular points D and B are equal. Show that OA and OC are in one and same straight line.
Answer» A point Of is taken inside a quadrilateral ABCD such that it's distances from the angular points D and B are equal. Show that OA and OC are in one and same straight line.