QUESTION

# Sum of the adjacent angles of a parallelogram is equal toA) 60$^\circ$B) 90$^\circ$C) 150$^\circ$D) 180$^\circ$

Then, $AD\parallel BC$ and AB is transversal.
A + B = $180^\circ$
Angle A and B are adjacent angles as they have a common side. Therefore the sum of adjacent angles of a parallelogram is = A + B = $180^\circ$