Answer
$\triangle JLM$ is congruent to $\triangle NRZ$.
$\triangle JLM$ is congruent to $\triangle ZRN$.
Work Step by Step
These two triangles are both isosceles triangles. We can flip the second triangle and still have a triangle congruent to $\triangle JLM$.
The congruent sides are:
$\overline{JL}$ is congruent to $\overline{NR}$ and $\overline{ZR}$
$\overline{LM}$ is congruent to $\overline{RZ}$
$\overline{JM}$ is congruent to $\overline{NZ}$
The congruent angles are:
$\angle M$ is congruent to $\angle Z$ and $\angle N$
$\angle R$ is congruent to $\angle L$
With these congruent lines and angles in mind, $\triangle JLM$ is congruent to $\triangle NRZ$ and $\triangle ZRN$.
