Tell if each statement is true or false?

If two parallel lines are intersected by a transversal, then alternate interior angles are supplementary.





If a quadrilateral is a parallelogram, then consecutive angles are equal in measure.





If two parallel lines are intersected by a transversal, then co-interior angles are supplementary.





If a quadrilateral is a parallelogram, then opposite angles are supplementary.Tell if each statement is true or false?
1) true


2)not sure


3)true


4)false