a square has a perimeter of 52 mm. The square is dilated by a scale factor of 3. what is the side length of the resulting image?

39

Step-by-step explanation:

Since a square has 4 equal sides, it's safe to do to get each side length (each side is 13 mm).

Dilating a side means you're multiplying it by the scale factor. This means that you're doing to each side (each side is 39 mm).

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2