Question

~If ABC DEF, what is the scale factor of ABC to DEF?A. 3B.1/7C. 1/3D. 14

Answer 1

Given:

• AB = 18

,

• AC = 24

,

• BC = 21

,

• EF = 7

Let's find the scale factor of triangle ABC to DEF.

To find the scale factor of similar figures, divide a side in the transformed figure by the length of the corresponding side in the original figure.

Thus, we have:

$\text{ scale factor = }\frac{EF}{BC}=\frac{7}{21}=\frac{1}{3}$

Therefore, the scale factor of ABC to DEF is 1/3.

ANSWER:

C. ¹/₃