Question

suppose you are given a circle give a construction to find it centre

Answer 1

mark 3 points on it but non-collinear then join them make side bisector of it it will intersect ay a point the point will b the centre...

Answer 2

Take three points P, Q,R on the circle.

2. Joint PQ and QR.

3.  Draw MT and NS which are the perpendicular bisectors of PQ and RQ

and intersecting each other at a point O.

Hence, O is the centre of the circle.