Question

Triangle ABC is the pre-image and triangle DFE is the image.

What is the scale factor of the dilation?
Please helppp!!!!!

Answer 1

Scale factor = ½

Explanation:

The original image is the preimage = ∆ACB

The new image is the image = ∆DFE

The scale of factor of dilation = image/preimage = DF/AC

DF = 6 cm (given)

AC = 12 cm (given)

Plug in the values into the equation to find the scale factor of dilation:

Scale factor = 6/12

Scale factor = ½