Question: Which angle is the included angle for MP and MN?

Answer: ∠M.

Question: Which postulate or theorem proves that these two triangles are congruent?

Answer: AAS Congruence Theorem.

Question: Which postulate or theorem proves that △ABC and △CDA are congruent?

Answer: ASA Congruence Postulate.

Question: Which postulate or theorem proves that △CFE and △DFE are congruent?

Answer: SAS Congruence Postulate.

Question: Which postulate or theorem proves that △PNQ and △QRP are congruent?

Answer: SSS Congruence Postulate.