Make a vertical line from point F, intersect with point G of CD, and connect AG.

Angle FAG= angle AGC

Angle FAG+ angle GAB= 122

Angle package+angle AGC= 122

Sum of internal angles of quadrilateral ABCG =360? Angle C=360- 122-90= 148.

Connect FC

Angle d = 360-148-81=131.

Extension? BA EF？ Hand it in at h?

Angle A= 122? FAH= 180- 122=58。

Angle AFE= angle C= 148, then angle AFH= 180- 148=32?

Because angle AFH+ angle FAH=90? Angle AHF=90?

Angle AHF= Angle B = 90, then two straight lines are parallel.