The polygons below are similar. Find the value of y.

4.5
7.5
12
16

Question

The polygons below are similar. Find the value of y.

	4.5
	7.5
	12
	16

anonymous · Answer

https://cv-sultan.brainhoney.com/Resource/23627040,1ED,0,0,0/Assets/74469_53c6baf4/0402_g3.jpg

anonymous · Answer

i think its a 4.5 but can u explain how u get the answer

anonymous · Answer

Well, i'll set up a proportion,   $$\frac{ 8 }{ 6 } = \frac{ 6 }{  }$$

sissyedgar · Answer

i think so 2, but i cant explain cause i kinda guessed

anonymous · Answer

8/6 = 6/y

anonymous · Answer

So 8y=36, solve y for your answer

anonymous · Answer

i dont get it

anonymous · Answer

Well its like one shape over the other

anonymous · Answer

like the way ur putting it doesnt make sense like can u walk me thru each step

anonymous · Answer

I had BC over FG equals AB over EF

anonymous · Answer

You're trying to set up a proportion with the shapes

jim_thompson5910 · Answer

this may help

anonymous · Answer

im bad a proporations when y is in it

anonymous · Answer

That image posted is perfect for explaining. (I'm bad at it) xD

anonymous · Answer

still dont understand one bit

jim_thompson5910 · Answer

There are a few ways to set up the problem. One of them is this proportion

6/y = 8/6

cross multiply and solve for y to get

6*6 = y*8

36 = 8y

8y = 36

y = ???

anonymous · Answer

4.5

sissyedgar · Answer

I get it!

anonymous · Answer

$$\frac{ BC }{ FG } = \frac{ AB }{ EF } use the imagetohelp$$