Side length of square Area Perimeter 1 1 4 2 4 8 3 9 12 4 16 16 5 25 20 6 36 24 (6) Chris: We’ve got a winner! 4 works. I told you squares could work. Can any other squares work? (7) Matei: I think that might be the only one. Look, the area is getting bigger much faster than the perimeter when we make the side length bigger. Then, to find x, we must multiply this value by the corresponding side-length of the smaller shape. So, we get . x=2.5\times3=7.5\text{ cm} b) To find the scale factor for the areas, SF_A, we must square the known scale factor: SF_A=2.5^2=6.25 . Now, to get the area of the bigger shape, we must multiply the area of the smaller one by this scale ...