Question

the proof that ( \triangle acbcong\triangle ecd ) is shown.
given: ( overline{ae} ) and ( overline{db} ) bisect each other at ( c ).
prove: ( \triangle acbcong\triangle ecd )
what is the missing statement in the proof?
( angle acbcongangle ecd )
( angle bcacongangle dca )
( angle acdcongangle ecb )
( angle baccongangle dec )

Explanation:

Step1: Vertical angles property

Vertical angles are congruent. $\angle ACB$ and $\angle ECD$ are vertical angles formed by the intersection of lines $AE$ and $DB$ at point $C$.

Answer:

$\angle ACB\cong\angle ECD$