The angles and of a quadrilateral are in the ratio . Then is a
trapezium with PQ || RS
Step 1 - Finding the angles of a quadrilateral
We know that the Sum of all interior angles of quadrilaterals is
Let us assume the angles be and
Therefore the angles are
The angles of the quadrilateral are and
Step 2 - Finding the sum of opposite angles
Therefore, the angle between the pair of parallel sides is supplementary.
So, is a trapezium with
Hence, Option B is correct