In Figure A, B and C are points on OP, OQ and OR respectively such that AB II PQ and AC II PR show that BC II QR.  

Asked by Topperlearning User | 26th Jul, 2017, 01:40: PM

Expert Answer:

In OPQ, AB II PQ

            (BPT)

          Also, in OPR, AC II PR

            (BPT)

          From (1) and (2), we have

             

Hence, BC || QR (BPT)

Answered by  | 26th Jul, 2017, 03:40: PM