Question

7 the pair of figures are similar. find the missing side length. 12 3 20 x 5

Explanation:

Step1: Set up proportion

Since the triangles are similar, the ratios of corresponding sides are equal. So, $\frac{12}{3}=\frac{20}{x}$.

Step2: Cross - multiply

Cross - multiplying gives $12x = 3\times20$.

Step3: Solve for $x$

$12x=60$, then $x=\frac{60}{12}$.

Answer:

$5$