Answer:
13.5 cm
Step-by-step explanation:
Given the actual width and length of a regulation soccer field, we can set up the following ratio:
[tex]\frac{width}{length}=\frac{90}{120}=\frac{3}{4}[/tex]
Since we know the length of the scale model to be 18 cm, we can set up a proportion (equivalent ratios) to find the missing side:
[tex]\frac{3}{4}=\frac{x}{18}[/tex]
Cross-multiply and divide: 4x = 3(18) or 4x = 54
Solve for x: x = 13.5 cm
