Answer:
f = 26
d=112
e=42
Explanation:
as far as what i can see, the first given angle is 112 and the second angle is 42.
These two angles are the angles on one straightline, therefore the missing angle will be 180 - 112 - 42 = 26 (Supplementary angle). This angle is not required and it is the missing angle on the left hand side. However, this angle should be equal to that of f (Opposite angle).
By the same way, d and e are the two opposite angles for 112 and 42, respectively.