Prove that opposite sides of a quadrilateral circumscribing a circle subtend supplementary angles at the centre of the circle. Share with your friends Share 1 Priyanka Kedia answered this Here is the link for the answer to your query: https://www.meritnation.com/ask-answer/question/prove-that-opposite-sides-of-a-quadrilateral-circumscribing/circles/6294201 0 View Full Answer