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Q: ABCD is cyclic quadrilateral and O is the center of the circle. If ∠COD = 140o and ∠BAC= 40o, then the value of ∠ BCD is equal to-

A. $$70^0$$
B. $$60^0$$
C. $$90^0$$
D. $$75^0$$
Answer» B. $$60^0$$


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