Respuesta :

JK = 2(37) - 45
JK = 74 - 45
JK = 29

answer
C. 29
The measure of the angle formed by 2 chords  that intersect inside the circle is 1/2 the sum of the chords' intercepted arcs ⇒

45 + JK = 37
×2
45 + JK = 74
JK = 74 - 45
JK =  29°