Triangle PQR is dilated to form triangle P'Q'R'. Which statement is true?
〇 All side lengths have been decreased by subtracting the scale factor from each side length, and all angle measures and all angle measures have also been multiplied by the remain the same.
〇 All side lengths have been multiplied by the scale factor, and all angle measures have also been multiplied by the remain the scale factor.
〇 All side lengths have been multiplied by the scale factor, and all angle measures remain the same.
〇 All side lengths have been increased by adding the scale factor to each side length, and all angle measures remain the same.