Question

find the missing dimension. use the scale factor 1:12.
item model actual
wingspan width: 5.4 ft width: \square yd

Explanation:

Step1: Find the actual width in feet

The scale factor is \(1:12\), which means actual size \(=\) model size \(\times12\).
If the model width is \(5.4\) ft, then the actual width \(w\) (in feet) is \(w = 5.4\times12\).

$$w=5.4\times12 = 64.8$$

Step2: Convert feet to yards

Since \(1\) yard \( = 3\) feet, to convert feet to yards, we divide by \(3\).
Let \(y\) be the width in yards. Then \(y=\frac{64.8}{3}\).

$$y=\frac{64.8}{3}=21.6$$

Answer:

\(21.6\)