Question

△abc and △pqr are similar. find the missing side length.
(the triangles are not drawn to scale.)

Explanation:

Step1: Find similarity ratio

$\text{Ratio} = \frac{PQ}{AB} = \frac{20}{5} = 4$

Step2: Calculate missing side length

$PR = AC \times \text{Ratio} = 6 \times 4$

Answer:

24