Answer:
1) ∠a = 125° {Alternate exterior angles are congruent}
2) ∠b = 55° {Vertically opposite angles}
3) ∠c = 125° {Corresponding angles}
4) ∠e = 125° {Vertically opposite angles}
5) ∠f = ∠b = 55° {Corresponding angles}
6) ∠h = 55° {corresponding angles}
Explanation: