Question

Given that ABC ~ DEF, what is the scale factor of ABC to DEF? Enter answer as a whole number or as a fraction in lowest terms, using the slash mark ( / ) for the fraction bar. (Diagram to follow)

Answer 1

\(\sf Scale~Factor=\dfrac{Side~of~new~figure}{(corresponding)~Side~of~original~figure}\)

Answer 2

divide the 7 in small triangle by the correspond side in the large one

Answer 3

So DEF has a side length of 7 on EF..and the corresponding side is BC.

So:

\(\sf Scale~Factor=\dfrac{EF}{BC}\)

Answer 4

What's the length of BC? @Itsyacoolgrl

Answer 5

21

Answer 6

Yes, so what's the scale factor?

Answer 7

7/21

Answer 8

Thanks @iGreen ! XD

Answer 9

Yep, now simplify it

Answer 10

Oh, well if it doesn't want you to..

Answer 11

I do have to simplify it

Answer 12

Oh, okay..do you know how?

Answer 13

not really

Answer 14

Divide the numerator and denominator by 7.

Answer 15

7 / 7 = ?
21 / 7 = ?

Answer 16

oh! 1/ 3

Answer 17

Yep, you got it.

Answer 18

Thanks!