Problem
If the ratio between the lengths of two corresponding sides of two similar polygons is \( 2: 3 \) then the ratio between their perimeters is
Solution
Step 1 ：\( \frac{length_1}{length_2} = \frac{2}{3} \)
Step 2 ：\( \frac{perimeter_1}{perimeter_2} = \frac{2}{3} \)
