What does it mean if two line segments are congruent?
First of all, we need to know the definition of congruent. Two figures or objects are said to be congruent if they have the same shape and size.
Our question told us that we’re dealing with two line segments. We often measure line segments by their length. This means we would say of congruent line segments they have the same length.
If two line segments are congruent, they have the same length.