Draw a circle of radius .
Draw any two of its chords.
Construct the perpendicular bisectors of these chords.
Where do they meet?
2. Take any two chords AB and CD in a circle.
3. By considering A and B as centres and a radius of more than half of AB,
Draw arcs on both sides of AB.
The arcs are intersecting each other at points E and F.
Join EF which is the perpendicular bisector of AB.
4. Again take C and D as centres and radius more than half of CD ,
Draw arcs on both sides of CD such that they are intersecting each other at points G, H.
Join GH which is the perpendicular bisector of CD
From the above-obtained diagram we observe that when EF and GH are extended they meet at the point O, which is the centre of circle