4. Marissa has determined that there is a relationship between the scale factor and perimeter of an image and its pre-image and between the scale factor and area of an image and its pre-image.
(a) For both the picture and the mat, determine the ratios of the perimeter of the scaled image to the perimeter of the original item.
(b) For both the picture and the mat, determine the ratios of the area of the scaled image to the area of the original item.
Answer: