Question

what is the missing length in the scaled copy? units

Explanation:

Step1: Set up proportion

Since the figures are similar, the ratios of corresponding sides are equal. Let the missing length be \(x\). We have the proportion \(\frac{18}{x}=\frac{9}{4}\).

Step2: Cross - multiply

Cross - multiplying gives \(9x = 18\times4\).

Step3: Solve for \(x\)

First, calculate \(18\times4 = 72\). Then, \(x=\frac{72}{9}\).

Answer:

\(8\)