Question

if these two shapes are similar, what is the measure of the missing length r?
r = kilometers
submit

Explanation:

Step1: Set up proportion

Since the shapes are similar, the ratios of corresponding sides are equal. So, \(\frac{r}{30}=\frac{25}{10}\).

Step2: Solve for \(r\)

Cross - multiply: \(10r = 30\times25\). Then \(10r=750\). Divide both sides by 10: \(r=\frac{750}{10}\).

Answer:

\(75\)