Question

1. multiple - choice 7 points

identify the reason that justifies the statement below.
*if (cd = ef), then (overline{cd}congoverline{ef}).
symmetric property
definition of mid - point
reflexive property
definition of congruence

Explanation:

The definition of congruence states that if two segments have the same length (in this case \(CD = EF\) means they have equal lengths), then they are congruent (\(CD\cong EF\)).

Answer:

Definition of congruence