45, 135 & 135 are the answers
Parallelograms have opposite angles so the angle across from the 45 degrees also has to be 45 degrees which sum up to 90 degrees. Parallelograms are quadrilaterals, therefore there must be four angles in total and they must add up to 360. 360-90= 270 and opposite angles must have the same value so divide it by two (135)
