Problem solving geometry

Question

in the parallelogram ABCD, angle D is 125 degrees .  What is the measure of all the other angles?

Answer 1

In a parallelogram, opposite angles are equal so angle B = 125^o.

The other two angles are equal, being 55^o each.  

 

Consecutive angles are supplementary.  Note that the total of all four angles must be 360 deg.