What is the value of x in Rhombus QRST
A)16
B)12
C)8
D)4
Can somebody help me check my work PLZZZZZZZZZZZZ medal and fan and also I'll draw it out for you

- youngnephew34

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- youngnephew34

|dw:1440155955384:dw|

- Astrophysics

|dw:1440156297957:dw| is this it? What is the 8 and 12 here, angles?

- youngnephew34

yes

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## More answers

- youngnephew34

you suppose to find the problem to that rhombus because it's a parallelogram

- Astrophysics

This isn't a very clear image, so is it like this then |dw:1440156635413:dw|

- youngnephew34

no

- youngnephew34

|dw:1440156729213:dw|

- youngnephew34

like that

- Astrophysics

Ok but is the rest correct? Like the right angles

- youngnephew34

yes

- youngnephew34

|dw:1440156895178:dw|

- youngnephew34

yes but the 8 goes on top and the 2x goes on the bottom

- Astrophysics

I don't know what you mean

- youngnephew34

and the 3x goes on your right side and the w 12 goes on the top right corner

- youngnephew34

ok Imma show you

- youngnephew34

yes correct

- youngnephew34

you know doing 90 degrees angle this is parallelogram of property

- Astrophysics

Well actually there is something wrong because then these aren't triangles

- youngnephew34

so you know how they do distributive of property but this is like that but only different

- Astrophysics

Can you just take a screen shot of your problem

- Astrophysics

Rhombus is a kind of parallelogram, I just don't really understand your image

- youngnephew34

##### 1 Attachment

- youngnephew34

there you go

- youngnephew34

did you see the image

- Astrophysics

Yeah ok I see, I haven't done this since I was in junior high so lets see...

- youngnephew34

TBH tho I thought it was 4

- youngnephew34

Is that the correct answer

- phi

the diagonals of a rhombus bisect each other
you can write
8= 2x

- phi

also,
3x=12

- Astrophysics

Or yeah haha just go with phi, I'm stupid when it comes to geometry xD

- youngnephew34

ok

- youngnephew34

so how do you do that cause I did it different

- phi

if you use
2x= 8
divide both sides by 2, like this
\[ \frac{2x}{2} = \frac{8}{2} \]
or
\[ \frac{2}{2}x = \frac{8}{2} \]

- phi

on the left side 2/2 is 1
and 1 times x is x
what do you get on the right side?

- youngnephew34

ok now I see but it's still the same answer I got 4 right

- Astrophysics

Yeah I had got 4 as well haha

- phi

yes, x=4
but you should be learning how to get the answer... it is not the answer that counts, it is learning how to get it.
if you use
3x=12
divide both sides by 3
\[ \frac{3x}{3} = \frac{12}{3} \]
what do you get for x?

- youngnephew34

yea I did mines as 3x+12=2x+8

- phi

you can't say that. the diagonals are not the same size

- phi

if you get x=4 doing that, you "lucked out"

- youngnephew34

I consul out the x and the 3x-2 =1x
1x+12=8
subtract both sides gives mi 1x=4
x=4

- Astrophysics

|dw:1440158336109:dw| this is what I had originally as they bisect 3x=12, 2x = 8
@youngnephew34 bisect literally means to divide in two equal sides.

- phi

1x + 12= 8
1x + 12-12 = 8-12
x= -4
so you don't get x=4

- youngnephew34

nvm

- youngnephew34

I got 2 more I want you guys to check

- phi

we know x=4, and so we can figure out one of the diagonals is 16 and the other diagonal is 24
18 does not equal 24
but that is what you are saying if you write
2x+8= 3x+12 <-- not true.

- youngnephew34

ok

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