To dilate the square with a side of 6 units to a square with a side of 18 units, you should use a scale factor of 3.
why
The scale factor is determined by comparing the ratio of the corresponding sides of the original square and the dilated square. In this case, the ratio of the side lengths of the dilated square to the original square is 18/6, which simplifies to 3. This means that each side of the dilated square is 3 times longer than the corresponding side of the original square, indicating a scale factor of 3.
