Line segment ST is dilated to create line segment S'T' using the dilation rule DQ,2. 25. Point Q is the center of dilation. Line segment S T is dilated to create line segment S prime T prime. The length of Q T is 1. 2 and the length of Q S is 2. The length of S S prime is x and the length of T T prime is 1. 5. What is x, the distance between points S' and S? x = 2. 25 units x = 2. 5 units x = 4. 25 units x = 4. 5 units.