Given BD(line over BD) bisects ∠ABC, complete the flowchart proof below. Note that the last statement and reason have both been filled in for you.


In order to prove that the triangles are congruent, we can write the following statements and reasons:
First box of the first row:
Statement: BD bisects angle ABC
Reason: Given
First box of the second row:
Statement: Angle ABD congruent to angle DBC
Reason: Definition of angle bisector
Second box of the second row:
Statement: angle ADB congruent to angle BDC
Reason: Given
Third box of the second row:
Statement: Side AB congruent to side BC
Reason: Given
Since we have two pair of corresponding angles and one pair of corresponding sides congruent, the triangles are congruent by case AAS.