Answer:
B) 125º
Step-by-step explanation:
From the diagram, we can figure out that since arc NM is 55º, and line NK and line LM are perpendicular, that are KM is 55º, and therefore, since 180 - 55 = 125, that are JK = 125º.
Another method is to find what number and 55 averages to 90. That also gives us: (JK + 55)/2 = 90 --> JK + 55 = 180 --> JK = 125º.
