Answer:
Congruent means that they shape or line is the same exact length in degree. The lines or shapes don't have to be the same size but they have to be the same length.
The way to dentermine if a segment is congruent is by finding out each of the segments lengths. This can be done by finding x or finding if each side of the midpoint is equal to each other.
Explanation:
Another way to finding if each line segment is the same size is by using a writing compass.