In the given figure, P and Q are the centres of two circles intersecting at B and C. ACD is a straight line. Calculate the numerical value of x.
In the given figure,
∠APB=2∠ACB [Angle subtended by an arc at the center is double the angle subtended by it at any other point on the remaining part of the circle]
Now, ∠ACB+∠BCD=180∘ [Linear pair angles]
Also, x + Reflex∠BQD=360∘