I need to find the angles of A and B. From what I know, they should be congruent, but I've been stuck for wayyyy to long.

Answer:
Step-by-step explanation:
If I'm not mistaken, the 76 degrees means that a is equal to 76 deg. Just visually, if you were to widen that angle, similarly, a would grow just as much.
If you know that a = 76d, b = 76d as well