O is the circumcentre of ABC. If BAC = 85 , BCA = 75 , then OAC i – McqOptions

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1.	O is the circumcentre of ABC. If BAC = 85 , BCA = 75 , then OAC is equal to :
A.	60
B.
C.	70
D.	50
E.	40
Answer» C. 70

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