III, Supply the reasons that correspond to the given statement in order to complete the proof of the theorem:
Theorem: Each diagonal of a rhombus bisects opposite angles.
Given: DFREN is a rhombus
Prove: ∠21 = ∠22, ∠23 = ∠24
Reasons:
1. Parallelogram FREN is a rhombus
2. ∆FNA ≅ ∆FRE; RE = EN
3. NR = RN
4. ∆ANF ≅ ∆ERN
5. ∠21 = ∠22, ∠23 = ∠24