Question

n the given figure PQRS is a parallelogram and the line segments PA and RB bisect the angles P and R respectively. Show that PA || RB

Answer 1

since the opposite angles of the parallelogram are equal..so 1/2 angle P=1/2 angle R..so since alternate angles are equal..so PA is parallel to RB

Answer 2

first. draw the parallelogram like this  
SEE in fig 2 PA || RB 
NOW YOU CAN SEE PA IS || RB