Equality in line segment means that the two (or more) segments being compared are exactly the same length. Congruence means that the two line segments are exactly the same. Two segments do not have to be congruent because they are equal; one could be vertical and the other could be diagonal.
If two segments have the same length, then they are congruent. ... If two segments are unequal in length, then they are congruent. C.) If two segments do not have the same length, then they are not congruent
