Answer
a. Given
b. Reflexive property of congruence
c. $\triangle JKM$
d. $\triangle LMK$
Work Step by Step
a. This is one of the given statements.
b. This is the reflexive property of congruence. It just means that a figure is congruent to itself because the same line forms a line on each of the triangles.
For c. and d., we have the final statement of the proof, stating that what we wanted to prove has been proven.
c. $\triangle JKM$
d. $\triangle LMK$
