Question

what number can you multiply each length in the scale drawing by to find the actual length?
what are the actual length and width of the trampoline?
actual length = ft
actual width = ft

Explanation:

Step1: Use the scale factor

The scale is \(1\) in. : \(3\) ft. So we multiply the length and width in inches by \(3\) to get the actual length and width in feet.

Step2: Calculate the actual length

Given the length in the scale drawing \(l = 4\) in. Using the formula \(L=\text{scale factor}\times l\), where the scale factor is \(3\). So \(L = 3\times4=12\) ft.

Step3: Calculate the actual width

Given the width in the scale drawing \(w = 2\) in. Using the formula \(W=\text{scale factor}\times w\), where the scale factor is \(3\). So \(W=3\times2 = 6\) ft.

Answer:

Actual length \(= 12\) ft, Actual width \(= 6\) ft