First picture:
a = 120
b = 145
The angles are correspondent and are the same.
Second picture:
3. d = 160 (correspondent angles)
c = 180 (because it's on the line) - 160 = 20. or simply 20 because it is correspondent with the angle next to the d
4. c = 90, because that angle is alternate interior to the right angle on the picture.
