Angle AOB=80 ( angle subtended by an arc at centre of circle is double the angle subtended at any other point on the circle )
Therefore, angle OAB=angle OBA=x
2x +80=180 ( angle sum property of Triangle)
Hence, x= 50.
1
Rimjim Das answered this
In the figure is zero In the given figure if O is the centre of the circle then find the x