Stellan began a proof.

JL=KM because segment JL≅ segment KM.
JK+KL=JL and KL+LM=KM, by the segment addition postulate.
KL+LM=JL, by substituting JL for KM.

What is a possible next step in Stellan's proof?

Stellan began a proof JLKM because segment JL segment KM JKKLJL and KLLMKM by the segment addition postulate KLLMJL by substituting JL for KM What is a possible class=