Find the area of the parallelogram shown above

I used a little trig, the opposite and adjacent were being used so I used tan... I used it to find h and then plugged it in the a=bh

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct

Then why is the question on here if you know the answer