TR is the tangent to the circle PQR with centre O. Find the size of ∠PRT
- 44o
- 46o
-
60o
- 74o
- 118o
The correct answer is: C
Explanation
Reflex < POQ = 360° - 148° = 212°
< PRO = 360° - 330° = 30°
But < ORT = 90° \(\implies\) < PRT = 90° - 30° = 60°