Respuesta :
Angle A: 56 degrees.
Angle B: 34 degrees.
Angle C: 56 degrees.
Angle D: 124 degrees.
Step-by-step explanation:
Angle A = 180-124, or 56 degrees.
The right angle given plus Angle B must equal 124, so 124-90 = 34 degrees.
Angle B = 34 degrees.
Angle C = 180-124, or 56.