Answer: The answer is NU, UT and NT.
Step-by-step explanation: We are given that the points N, U and T are collinear. We are to name all the segments these points will determine.
As shown in the figure, the points N, U and T lie on the same line or they are collinear. We can see that these points will determine three line segments, which are NU, UT and NT.
Thus, the answer is NU, UT and NT.