Question

how to find the centre of a circle

Answer 1

draw two chords
draw perpendicular bisector of the chords
the point of intersection will be the centre of the cicle

Answer 2

first of all draw a chord
then draw another chord.
c
in this figure chords are ab and cd
and join ac and bd
where they intersect each other mark it o
hence point o is the center of circle
hope it helps u
this is a simple method to find center of circle