Answer:
by SSS
Step-by-step explanation
The tick marks tell us the following
- JK = LK (single tick marks)
- MJ = ML (double tick marks)
Those are the "given". It's not verbally stated, but instead visually stated.
Furthermore, KM = KM by the reflexive property.
We have three pairs of congruent sides, which allows us to use SSS (side side side).
We cannot use SAS because we don't have any information about the angles.