To find angle \( b \) using the properties of exterior angles of triangles, remember that the exterior angle of a triangle is equal to the sum of the two opposite interior angles.
If we know the measures of the interior angles adjacent to the exterior angle at point \( b \), we can use the formula:
\[ \text{Exterior Angle} = \text{Angle 1} + \text{Angle 2} \]
Since you haven't provided the measures of the interior angles or the exterior angle itself, I can't directly calculate angle \( b \). However, traditionally if the problem is structured around finding \( b \) through options, the most common situation would involve angle equations that lead to:
- 52°
- 92°
- 232°
- 38°
If \( b \) is an exterior angle, and if referring to \( b \) equating to some known angle, you can analyze the given options with any provided measurements.
To summarize: Please provide more information about the angle measures or the specific triangle configuration for us to determine angle \( b \).