Question

What is the scale factor if triangle ABC was dilatedto create triangle DEF?2/31/223/2

Answer 1

Option B is correct.

Step-by-step explanation

The scale factor for dilating any figure (reducing or enlarging any figure) is given as

Scale factor = (Length of the image figure)/(Length of original figure)

For this question, we have been told that triangle ABC is the original image and triangle DEF is the new image figure after the dilation occurs.

Note that you need to use corresponding sides in the calculation of scale .factor

Scale factor = (Length of the image figure)/(Length of original figure)

Length of the image figure = 5 ft.

Length of original figure = 10 ft.

OR

Width of the image figure = 3 ft.

Width of the first image figure = 6 ft.

Scale factor = (Length of the image figure)/(Length of original figure)

Scale factor = (5/10) = (3/6) = ½

Hope this Helps!!!