65.
From a point T, a tangent TP at point P, is drawn to a circle with centre O. A secant TQR (point Q is near to point T) is drawn from the point T. ∆PQR is inscribed into the circle by joining the points P, Q and R. Draw lines OQ and OR. If ∠PTQ is 27° and ∠TPQ = 55°, what is the degree measure of ∠ROQ?