Figure STUV and figure WXYZ, shown below, are similar figures.

The scale factor of figure STUV to figure WXYZ is 3:1. If ST = 39 mm and SV = 51 mm, what is the length of side WZ?
13 mm
117 mm
17 mm
153 mm

it's 13mm

Its 13 just took the test and got 13 right.

being for real here it is 13

13

can yall explain how yall got 17mm?

It's 13 i was doing this homework with my son.

it is 13

bruh its 13

I HAD THIS QUESTION TOO. ITS 13mm

IT is 13!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

There is no 13 or 17 on here.

Some of yall are saying 13 and some of yall are saying 17 . I see no 17 or 13 on my anwser choices .

20

It’s 17mm. So all y’all who said, 13mm, that’s wrong, and it’s a little bit of a trick question. I asked a friend who’s a middle school math teacher, and she said it’s 17mm.

17

its 17 guys pls

it is 17

17

It is 100% 17 i just had it on a test i choose 13 and it was wrong it is 17

17 MM