state gov Bihar Police SI (दरोगा) Mock Test Series 2025 Quantitative Aptitude Geometry Circles, Chords and Tangents
PA and PB are two tangents from a point P outside the circle with centre O. If A and B are points on the circle such that ∠APB = 100°, then ∠OAB is equal to:
1
45°
2
70°
3
50°
4
35°