Question

if these two shapes are similar, what is the measure of the missing length g? 20 km 12 km 9 km g = kilometers

Explanation:

Step1: Set up proportion

Since the two triangles are similar, the ratios of corresponding sides are equal. Let the ratio of the sides be $\frac{20}{12}=\frac{g}{9}$.

Step2: Cross - multiply

Cross - multiplying gives us $12g = 20\times9$.

Step3: Solve for g

First, calculate $20\times9 = 180$. Then, $g=\frac{180}{12}=15$.

Answer:

15