Prove-
Statements-
3. AB ||CD
4. ANGLE ABD = CDB
5. DB = DB
6. ABD = CDB
Reason-
3.?
4.?
5.?
6.?
Proof:
3. Given: AB || CD (Given parallel lines)
4. Given: ∠ABD = ∠CDB (Given corresponding angles are equal)
5. Reflexive Property of Equality: DB = DB (Any quantity is equal to itself)
6. Angle Equality Property: ∠ABD = ∠CDB (If two angles are equal to the same angle, then they are equal to each other)
Therefore, we have proved that ABD = CDB.