Answer: The required perimeter of the dilated rectangle is 108 units.
Step-by-step explanation: Given that Aman drew a rectangle with a perimeter of 36 units and then preformed a dilation with a scale factor of 3.
We are to find the perimeter in units of the resulting image.
Let P units denotes the perimeter of the dilated rectangle and S denote the scale factor of dilation.
That is, S = 3.
Then, according to the given information, we have

Thus, the required perimeter of the dilated rectangle is 108 units.