Mathematics 26 Online
OpenStudy (bbb911):

This is a GEometry problem attachments included

OpenStudy (bbb911):

OpenStudy (bbb911):

OpenStudy (anonymous):

first one is c

OpenStudy (bbb911):

i got that :3 and the second one?

OpenStudy (anonymous):

what did you get? i hope its what i got...

OpenStudy (bbb911):

the same :3

OpenStudy (anonymous):

yeah, but for the 2nd one, what did you get?

OpenStudy (bbb911):

that is where im confused :0

OpenStudy (anonymous):

you need to work out E to F then divide that by DE

OpenStudy (bbb911):

ok 1 min

OpenStudy (anonymous):

and you have to remember that the picture they have is not to scale

OpenStudy (bbb911):

is it 7.6?

OpenStudy (anonymous):

i agrizzle

OpenStudy (bbb911):

so its correct? :3

OpenStudy (anonymous):

it is not 7.6 try again. find first the EF. which is, 30 - 18 = 12 the ratio is: GH : 8 = 18 : 12 what you do is, divide 12 by 8, multiply it to GH. Then equate it to 18. like this, (12/8)GH = 18 my answer is not 7.6

OpenStudy (anonymous):

yeah, im pretty sure

OpenStudy (anonymous):

its 12 isn't it. thats what i started with but then i looked at the diagram again, and thought that cant be right because those other lines arent parallel

OpenStudy (bbb911):

oh so its 12

OpenStudy (anonymous):

when i say "its 12 isn't it." im talking about theawesomes answer not what the actual answer is

OpenStudy (bbb911):

OpenStudy (anonymous):

it might be, but see the proportion. GH should be larger than HI, since DE is larger than EF.

OpenStudy (anonymous):

so, 7.6 can't be the answer since it is smaller than 8. you're defying the proportion given in question 6. plus, solve it mathematically, it gives you 12. so, I say it is 12.

OpenStudy (anonymous):

no, it shouldn't because of that exact reason... it'd only be the same ratio if they were parallel. but because they're coming together then it has to be smaller

OpenStudy (anonymous):

okay. i understand that. but can you show me how you got 7.6?

OpenStudy (anonymous):

no i dont want to :(

OpenStudy (anonymous):

I'm getting 12 as well. 8 (18/12)=12.

OpenStudy (anonymous):

yeah, i think that diagram just put me off i honestly started with 12 as my answer

OpenStudy (anonymous):

Okay. So 12 it is.

OpenStudy (bbb911):

Thank you all

OpenStudy (anonymous):

sigh, yes.