NCERT Example 2 - Lines and Angles
Question: In Fig. 6.10, ray OS stands on a line POQ. Ray OR and ray OT are angle bisectors of ∠POS and ∠SOQ, respectively. If ∠POS = x, find ∠ROT.
Answer: ∠ROT = 90° (independent of x).
Full step-by-step NCERT solution with diagrams on Something by Zero.