Statement Reason

1.

given

2. ∠CAB ≅ ∠EDB
∠ACB ≅ ∠DEB

If two parallel lines are cut by a transversal, the corresponding angles are congruent.

3. ∆ABC ~ ∆DBE

AA criterion for similarity

4.

Corresponding sides of similar triangles are proportional.

5. AB = AD + DB
CB = CE + EB

segment addition

6.

Substitution Property of Equality

7.

division

8.

Subtraction Property of Equality

What is the missing statement in the proof? Scroll down to see the entire proof.

A.

B.

C.

D.