Complete the two-column proof by providing the missing statements or reasons.
Given: ABCD is rhombus
Prove: ∠1 ≅ ∠2
Statement Reason
1. 1. Given
2. AD = BC = CD = BA 2.
3. DO = OB; AO=OC 3. Diagonals of a parallelogram bisect each other.
4. △DOA ≅ △BOA 4.
5. ∠1 ≅ ∠2 5.
