Question

I need help finishing the proof

Answer 1

See proof

Explanation:

Statements Reasons

1.
`\overline{AEC}` bisects
`\angle DAB,\ \angle 1\cong \angle 2` Given

2.
`\angle 3\cong \angle 4` Definition of angle bisector

3.
`\overline{AE}\cong \overline{AE}` Reflexive property of equality

4.
`\triangle ABE \cong \triangle ADE` AAS postulate

5.
`\overline {AB}\cong \overline{AD}` Congruent triangles have congruent corresponding sides

6.
`\overline{AC}\cong \overline{AC}` Reflexive property of equality

7.
`\triangle BAC \cong \triangle DAC` SAS postulate

8.
`\overline {BC}\cong \overline{CD}` Congruent triangles have congruent corresponding sides