Question 455318
I presume you want the area of the new figure instead of the perimeter; it is impossible to uniquely determine the perimeter of such a figure (perimeter could even be infinite).


If the side lengths are multiplied by 4, then the area (2-dimensional) will be multiplied by 4*4, or 16. The new area is (3 cm^2)(16) = 48 cm^2.