#### Answer

The ratio of the perimeters is 3:5
The ratio of the areas is 9:25

#### Work Step by Step

Find the corresponding side ratio.
$\frac{15}{25}$=$\frac{3}{5}$
The ratio of the perimeters is equal to the ratio of the corresponding sides.
$\frac{3}{5}$=$\frac{3}{5}$. This can be written as 3:5 as well.
The ratio of the areas is equal to the square of the ratio of the corresponding sides.
$\frac{3^{2}}{5^{2}}$=$\frac{9}{25}$. This can also be written as 9:25