Question

the figures below are similar. use proportions to find the length of s. s = ?

Explanation:

Step1: Set up proportion

Since the triangles are similar, the ratios of corresponding sides are equal. So we have $\frac{s}{5}=\frac{8}{4}$.

Step2: Solve for s

Cross - multiply: $4s = 8\times5$. Then $4s=40$. Divide both sides by 4: $s=\frac{40}{4}$.

Answer:

10