

MCQOPTIONS
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1. |
I and O are respectively the in-centre and circumcentre of a triangle ABC. The line AI produced intersects the circumcircle of ABC at the point D. If ABC = x , BID = y and BOD = z , then z + x = y |
A. | 3 |
B. | 1 |
C. | 2 |
D. | 4 |
Answer» B. 1 | |