Two statements I and II are given and a question is given. The correct answer is

Is ABCD a cyclic quadrilateral?


I. Points A, B, C and D lie on a circle.


II. ∠B + ∠D = 180°.



Here,


ABCD is said to be cyclic quadrilateral


If either of any point is satisfied


i)Points and lie on a circle.


ii)∠ B + ∠C = 180°

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