Final answer:
The length of the segment RS is 5 units and the segments RS is congruent to itself.
Step-by-step explanation:
To find the length of a segment, we can use the distance formula, which is based on the Pythagorean theorem. The distance formula is:
d = √((x2 - x1)^2 + (y2 - y1)^2)
In this question, the endpoints of the segment RS are R(5,4) and S(0,4). Using the distance formula, we can find the length of the segment as:
d = √((0 - 5)^2 + (4 - 4)^2) = √((-5)^2 + 0^2) = √(25 + 0) = √25 = 5
Therefore, the length of segment RS is 5. Since the segments have the same length, RS is congruent to itself.