I'm unable to directly use a protractor or see images, so I cannot measure angle b for you. However, I can guide you on how to measure an angle using a protractor:
-
Position the Protractor: Place the center point (the small hole) of the protractor on the vertex of the angle (the point where the two lines meet).
-
Align the Baseline: Make sure one side of the angle aligns with the zero line of the protractor (the straight edge).
-
Read the Measurement: Look at where the other side of the angle crosses the number scale on the protractor. This will give you the measure of the angle in degrees.
If you have the angle's measurement from another source or can describe it, I can help you interpret it!