please answer fast: 23. Inquadrilateral PQRS, ∠ P : ∠ Q : ∠ R : ∠ S = x : y : y : x . Prove that quadrilateral PQRS is cyclic. ∠ P : ∠ Q : ∠ R : ∠ S = x : y : y : x . Share with your friends Share 0 Hari Shankar answered this 0 View Full Answer