Question

Given EGIK ~ LNPR, what scale factor applied to LNPR will give EGIK?

A. 3/7
B. 2/3
C. 3/2
D. 7/3

Answer 1

I believe it's C?

Answer 2

@whpalmer4

Answer 3

Or B..?

Answer 4

What is the ratio of LR to EK?

Answer 5

Better yet, what is the ratio of EK to LR?

Answer 6

42:28?

Answer 7

28:42

Answer 8

I think it's C

Answer 9

If EK is 28, and LR is 42, EK:LR = 28:42 or 2*2*7:2*3*7 or 2:3

So multiplying by 2/3 will convert a dimension on the larger figure to the dimension on the smaller figure.

Multiplying the bigger figure by 3/2 just makes it bigger, and that's not what you want.

Answer 10

Look at this example:

Given ABCD ~ MNPQ, what scale factor applied to MNPQ will give ABCD?

A. 7/5
B. 5/7
C. 4/3
D. 3/4

C is correct

Answer 11

@whpalmer4

Answer 12

@whpalmer4 never mind, I get it :)

Answer 13

ratio is 4:3, with ABCD being the 4 and MNPQ being the 3. If we multiply 4/3 * 3, we get 4, so 4/3 is the correct scale factor to go from MNPQ to ABCD.

Answer 14

Ok, so for the first one, it's B, right @whpalmer4 ?

Answer 15

ratio of EK to LR is 28:42 or 2:3, with EK being the 28. Multiplying 42 by 2/3 gives us 84/3=28, so 2/3 is the correct scale factor to apply to LNPR to get EGIK.

Answer 16

Alright, thanks :)
Can you come to the other question I tagged you on?
Thanks if you can!