Question

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Answer 1

Since angles N, Z, J, and M are all congruent, there are technically four different ways to prove its congruency, but two of the choices are taken away because JLM is given, not it reversed. Since J and M of the first triangle are congruent to each other, saying that MLJ is congruent it correct. You can flip the letters of congruent triangles as long as the angles of the first, second, and third letter match up.

Answer 2

Well it is asking for two proven congruency statements, for the other triangle.

Answer 3

Since angles M and J are congruent, the triangle can be written as JLM or MLJ, because the first and last angles are the same. Also, this applies to triangle NRZ because angles N and Z are congruent, so this triangle can be written both as NRZ and ZRN. Does this make sense?