Respuesta :
J------------------------K--------------------------L
|------------4-----------|
Since K is the midpoint of the JL, the distance from J to K is the same with the distance from K to L.
KL = 4, so JK = 4.
|------------4-----------|
Since K is the midpoint of the JL, the distance from J to K is the same with the distance from K to L.
KL = 4, so JK = 4.