SSC IB Security Assistant & MTS Mock Test Series 2023 Quantitative Aptitude Mensuration Plane Figures
The sides AB and AC of a ∆ABC are produced up to points D and E. The bisectors of the exterior angles to formed. intersect each other at point I if ∠ACB is 660 and ∠ABC is 440, then what is the measure (in degrees) of ∠BIC?
1
52
2
50
3
55
4
48