SSC SSC CPO Mock Test Series 2025 (Tier I & II) (DP SI & CAPF) Quantitative Aptitude Geometry Triangles, Congruence and Similarity
AB is a chord of a circle with centre O and C is a point on the circumference of the circle. If ∠ACB = 70°, find ∠OBA.
1
70°
2
20°
3
40°
4
140°