A straight line is drawn cutting two equal circles and passing through the midpoint M of the line joining their centres O and O’. Prove that chords AB and CD, which are intercepted by the two circles are equal.

A straight line is drawn cutting two equal circles and passing through

1.	A straight line is drawn cutting two equal circles and passing through the midpoint M of the line joining their centres O and O’. Prove that chords AB and CD, which are intercepted by the two circles are equal.
Answer» A straight line is drawn cutting two equal circles and passing through the midpoint M of the line joining their centres O and O’. Prove that chords AB and CD, which are intercepted by the two circles are equal.