Two tangent TP and TQ are drawn to a circle with centre O from an external point T. Prove that ∠PTQ=2 ∠OPQ. Two tangent TP and TQ are drawn to a circle with centre O from an external point T. Prove that ∠PTQ=2 ∠OPQ. October 6, 2020 Category: Chapter 10 - Circles , Maths , [...]