If two circles intersect at two points, then prove that their centres lie on the perpendicular bisector of the common chord.

If two circles intersect at two points, then prove that their centres

1.	If two circles intersect at two points, then prove that their centres lie on the perpendicular bisector of the common chord.
Answer» If two circles intersect at two points, then prove that their centres lie on the perpendicular bisector of the common chord.