Question

Given figure PQRS ~ figure TUVW, what is the value of b?

[ ]yd

Answer 1

http://static.k12.com/calms_media/media/1572000_1572500/1572064/1/5d68363e0a57b2744821077a6e6b8353b32df463/MS_IMC-141210-110203.jpg

Answer 2

@amistre64

Answer 3

are the shapes similar?

Answer 4

Yes

Answer 5

then what do we know about similar shapes and their properties?

Answer 6

They are congruent?

Answer 7

congruent means equal ... these are not equal

Answer 8

the solution lies with something called a scale factor ...

Answer 9

ok

Answer 10

what is the scale factor

Answer 11

2.6

Answer 12

i dont get 2.6, how are you trying to work it?

Answer 13

I did 3.9-1.3

Answer 14

im not sure why you would do that ...

a scale factor is multiplication ... not addition

Answer 15

we have 2 sides that we can compare:

3.9 and 1.3

we scale 3.9 to get to 1.3

3.9k = 1.3

and we scale 9.6 to get to b

9.6k = b

Answer 16

3.2

I did 3.9 1.3 and got 3.... so I did 3.2 divided by 3

Answer 17

3 is the scale factor from right to left :) but its workable all the same

in my setup; k = 1/3

9.6/3 = b = 3.2

Answer 18

so B=3.2

Answer 19

correct

Answer 20

Thank you