PQRS is a paralle\log ram. A circle through P, Q is so drawn that intersects PS at A and QR at B. Then, prove that ABRS is a cyclic quadrilateral.

PQRS is a paralle\log ram. A circle through P, Q is so drawn that inte

1.	PQRS is a paralle\log ram. A circle through P, Q is so drawn that intersects PS at A and QR at B. Then, prove that ABRS is a cyclic quadrilateral.
Answer» PQRS is a paralle\log ram. A circle through P, Q is so drawn that intersects PS at A and QR at B. Then, prove that ABRS is a cyclic quadrilateral.