If the width of the rectangle is 3 units, and assuming the rectangle is a typical rectangle with sides perpendicular to each other, we can use the formula for the perimeter of a rectangle:
Perimeter = 2(Length + Width)
Given that the width is 3 units, we can substitute this into the formula:
Perimeter = 2(Length + 3)
Now, let's assume the length of the rectangle is represented by \( L \). So, the formula becomes:
Perimeter = 2(L + 3)
If we know the perimeter of the rectangle, we can solve for the length. However, if only the width is given, and we don't have information about the perimeter or any other aspect of the rectangle, we cannot determine the length.