Given the following angle:
You can find its measure by using a protractor. The steps are shown below:
1. Place the origin of the protractor on the vertex of the angle. In this case, the vertex is identified with a yellow circle. See the picture below:
2. Align the 0 degrees of the protractor with the baseline given. In this case, the baseline is the green line shown in the picture:
3. Identify the other line of the angle and where this passes through the protractor arc.
4. Identify the measure of the angle.
Look at the picture shown below:
Therefore, the answer is: