Question

what is the scale factor from δabc to δdef? a. 10 b. 5 c. 1 d. 0

Explanation:

Step1: Identify side lengths

Both $\triangle ABC$ and $\triangle DEF$ have all sides equal to 5 (equilateral triangles).

Step2: Calculate scale factor

Scale factor from $\triangle ABC$ to $\triangle DEF$ is $\frac{\text{Side of } \triangle DEF}{\text{Side of } \triangle ABC} = \frac{5}{5} = 1$.

Answer:

C. 1