What is the measure of JK?
A. 35
B. 55°
C. 145°
D. 125°

Answer:
125 degrees.
Step-by-step explanation:
L is the midpoint of NK so the arcs NM and Mk are equal.
So MK = 55 degrees and the arcs JN and JK are equal
Therefore
JK =
(360 - 2*55)/2
= (360 - 110) / 2
= 250 /2
= 125 degrees.