In parallelogram abcd, the measure of angle abc is 130, find the measure, in degrees of angle dab

Angle ABC = 130
Angle ABC = Angle ADC = 130 (Opposite angles are equal)
Angle DAB = 180 - 130 = 50 (consecutive interior angles)

I HOPE IT IS HELPFUL:D

If angle ABC is 130, then I think you would do this; 

The angles should be Supplementary (Together they equal 180)

So, let's set up an equation with the information we have.  

130+x=180.
Now just solve for X.
 130+x=180
-130    -130
        x=50

So DAB should be 50.

Hope I could help!

Sin(a)+cos(a)+cot(a)-1=2(csc(x)+1)