11. Two marks exercise problem II

\(PQ\) is a tangent drawn from a point \(P\) to a circle with centre \(O\) and \(QOR\) is a diameter of the circle such that \(\angle POR = 120^\circ\). Find \(\angle OPQ\).

 

Answer:

 

The angle \(OPQ\) \(=\) \(^\circ\)