Answer :

Answer:

3. Reason : Definition of Midpoint

Step-by-step explanation:.

Since [tex]\( K \)[/tex] is the midpoint of [tex]\( MJ \)[/tex] and [tex]\( LO \)[/tex], by definition of a midpoint, it means:

  - [tex]\( MK \)[/tex] is congruent to [tex]\( JK \)[/tex]

  - [tex]\( OK \)[/tex] is congruent to [tex]\( LK \)[/tex]

These equal segments come directly from the definition of midpoint, which states that a midpoint divides a segment into two equal parts on both pairs of sides.

Therefore, he correct answer is Definition of Midpoint.