The two column proof has shown that ∠B ≅ ∠D by CPCTC
How to solve two column proof?
The two column proof to show that ∠B ≅ ∠D is as follows:
Statement 1: BC ║ AD
Reason 1: Given
Statement 2: AB ║ CD
Reason 2: Given
Statement 3: AC ≅ CA
Reason 3: Reflexive Property
Statement 4: ∠BCA ≅ ∠DAC
Reason 4: Alternate angles
Statement 5: ∠DCA ≅ ∠BAC
Reason 5: Alternate angles
Statement 6: ΔDCA ≅ ΔBAC
Reason 6: ASA Congruence postulate
Statement 7: ∠B ≅ ∠D
Reason 7: CPCTC