Question

triangle tuv was dilated to create triangle tuv using point a as the center of dilation. what is the scale factor of the dilation? o $\frac{2}{5}$ o $\frac{2}{3}$ o $\frac{3}{2}$ o $\frac{8}{5}$

Explanation:

Step1: Recall scale - factor formula

Scale factor = $\frac{\text{length in dilated figure}}{\text{length in original figure}}$

Step2: Choose corresponding sides

Let's use side AV and AV'. AV' = 3.2, AV = 4.8

Step3: Calculate scale factor

Scale factor = $\frac{3.2}{4.8}=\frac{2}{3}$

Answer:

$\frac{2}{3}$