Two tangents TP and TQ are drawn to a circle with centre O from an external point T. Prove that ∠ PTQ = 2 ∠ OPQ.
This question is exactly same as Example 2, Chapter 2, Class 10– NCERT BOOK
Please check the answer here https://www.teachoo.com/1841/540/Example-2---Two-tangents-TP-and-TQ-are-drawn-from-point-T/category/Examples/