Answer:
Step-by-step explanation:
1) [tex]ABCD[/tex] is a parallelogram (given)
2) [tex]\overline{AB} \parallel \overline{CD}, \overline{AD} \parallel \overline{CB}[/tex] (definition of parallelogram)
3) [tex]\angle DCE \cong \angle BAE, \angle CDB \cong \angle ABD[/tex] (Alternate interior angles theorem)
4) [tex]\overline{AB} \cong \overline{CD}[/tex] (opposite sides of a parallelogram are congruent)
5) [tex]\triangle ABE \cong \triangle CDE[/tex] (ASA Triangle Congruence theorem)
6) [tex]\overline{AE} \cong \overline{CE}, \overline{DE} \cong \overline{BE}[/tex] (CPCTC)