Question

Given figure ABCD ~ figure KLMN, what is the value of y?
A.
1.2 cm

B.
3.6 cm

C.
4 cm

D.
12 cm

Answer 1

@matt101

Answer 2

Same process as before - just use the ratio for the given sides to solve for the unknown!

Answer 3

And by the way, you can already eliminate two of your answers because you know y needs to be LESS than 4 cm since you've shrunk the shape.

Answer 4

@StudyGurl14

Answer 5

what was the equation before

Answer 6

@matt101

Answer 7

Choose two sides that are given in both shapes. We need the unknown obviously, so the top side will be one of our sides. We also have the right side given in both shapes, so let's use that.

That ratio of the sides within each shape will be the same as I explained in your first question. So:

\[{y \over 3}={4 \over 10}\]

Answer 8

@matt101

Answer 9

i dont get it because im left with 10y = 12

Answer 10

@cwrw238

Answer 11

@cwrw238

Answer 12

So what does y equal?

Answer 13

3.6 i think

Answer 14

@matt101

Answer 15

@bohotness

Answer 16

If 10y=12, then y=12/10=1.2