If two solids are similar and the ratio between the lengths of their edges is 2 to 9 what is the ratio of their surface areas?

If two solids are similar and the ratio of their edge lengths is ( \frac{2}{9} ), the ratio of their surface areas is the square of the ratio of their corresponding lengths. Therefore, the ratio of their surface areas is ( \left(\frac{2}{9}\right)^2 = \frac{4}{81} ).