In the diagram, if PS = SR and PQ||SQ, what is the size of PQR?
A.
25o
B.
50o
C.
55o
D.
65o
E.
75o
Correct answer is B
Explanation
< PQR + , PSR 180(Opposite angles in a Quadrilateral are supplementary)< PQR + 130o = 180
< PQR = 180 - 130