I need help finding the missing information for a rhombus

Answer:
Step-by-step explanation:
The diagonals of a rhombus bisect each other at right angles, and bisect each of the vertex angles. Of course, adjacent vertex angles are supplementary.
Assuming E is where the diagonals cross, then we have ...
∠ABE = 124°/2 = 62°
∠BCE = 90° -62° = 28°
∠BAD = 2·28° = 56° . . . (= 180° -124°)