Answer: The measure of angle BCD is 77 degree.
Step-by-step explanation:
From the given figure it is noticed that the side AB and DC are parallel and side AD and BC are parallel. So the given figure is a parallelogram.
It is given the measure of angle BCD is 103 degree.
According the property of parallelogram, any two consecutive angles of a parallelogram are supplementary angles.
Since the given figure is a parallelogram therefore angle ABC and angle BCD are supplementary angles.




Therefore, the measure of angle BCD is 77 degree.