Question

the figures below are similar. use proportions to find the length of n. 5 10 n 4 n = ?

Explanation:

Step1: Set up proportion

Since the figures are similar, the ratios of corresponding sides are equal. So we have $\frac{5}{n}=\frac{10}{4}$.

Step2: Cross - multiply

$10n = 5\times4$.

Step3: Simplify right - hand side

$10n=20$.

Step4: Solve for n

$n=\frac{20}{10}=2$.

Answer:

2