[" 15.If a line segment joining mid-points of two chords of a circle passes through the centre,prove that "],[" the two chords are parallel."]

If a line segment joining mid-points of two chords of a circle passes through the centre of the circle, prove that the two chords are parallel.

If a line segment joining mid-points of two chords of a circle passes through the centre of the circle, prove that the two chords are parallel.

If a line segment joining mid-points of two chords of a circle passes through the centre of the circle, prove that the two chords are parallel.

The line joining the mid-points of two chords of a circle passes through its centre. Prove that the chords are parallel.

Prove that the line joining the mid-points of two parallel chords of a circle passes through the centre.

Prove that the line joining the mid-points of two parallel chords of a circle passes through the centre.

Prove that the line joining the mid-points of two parallel chords of a circle passes through the centre.

Prove that the line joining the mid-points of two parallel chords of a circle passes through the centre.

If the angle - bisector of two intersecting chords of a circle passes through its centre , then prove that the chords are equal .

The line joing the points of contact of two parallel tangents to a circle passes through the centre.Prove it.