Question

In the given figure, $\Delta ABC\sim \Delta DEF$ and $\Delta DEF$ is the dilation of $\Delta ABC$. What is the scale factor?

• A. 1
• B. 2
• C. 0.5
• D. 4

Answer 1

The correct option is B 2

Scale factor = $\frac{Enlargedside}{Originalside}=\frac{EF}{BC}=\frac{8}{4}=2$