Answer :

Answer:

a = 143°

b = 37°

c = 143°

Step-by-step explanation:

Theorems on intersecting lines are used:

b = 37° ( vertically opposite angles)

c + 37° = 180° ( straight angles)

c = 180° - 37°

c = 143°

c = a ( vertically opposite angles)

a = 143°