Answer:
These two figures are similar because 5/3 equals 15/9.
Explanation:
If two figures are similar, their corresponding sides are proportional.
This means comparing the sides, we get equivalent ratios.
The ratio of the sides of the smaller rectangle is 5/3. The ratio of the sides of the larger rectangle is 15/9.
5/3(3/3) = 15/9; this means these are equivalent ratios, which means the corresponding sides are proportional and the figures are similar.