Question 11

Explanation

Step 1: Calculate the actual width of the object. Given the area of the rectangle is $540\text{ m}^2$ and the length is $30\text{ m}$.

Convert to cm:

Step 2: Calculate the width of the miniature using the given ratio. The ratio of miniature size to actual size is $5 : 2500$ or $\frac{5}{2500}$.

So, the width of the miniature object is $3.6\text{ cm}$.