Question

in the diagram ,o is centre of the circle find value of x
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Answer 1

Answer:

as this figure lie in betn the circle

i.e. its a cyclic quadrilateral

Step-by-step explanation:

$x + 138 = 180 \\ x = 180 - 138 \\ = 42$

In acyclic quadrilateral,sum of opp.angles are 180