If the area of A is 81 times that of B l, what is the ratio of the perimeters?

If the area of A is 81 times that of B l, what is the ratio of the perimeters?

to get the ratio of the perimeters we proceed as follows:

linear scale factor = √ (area scale factor)

thus

linear scale factor = √81

linear scale factor=9

thus the ratio of the perimeter is, perimeter of A is 9 times that of B