In the diagram above PQT is a tangent to the circle QRS at Q. Angle QTR = 48° and ∠QRT = 95°. Find ∠QSR
- 48o
- 45o
-
37o
- 32o
- 30o
The correct answer is: C
Explanation
∠RQT = 180° - (95° + 48°) = 37°
∠OQR = 90° - 37° = 53°
∠QOR = 180° - (53° + 53°) = 74°
QSR = 74°/2 = 37°