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DS: triangle

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DS: triangle [#permalink]

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New post 07 Sep 2008, 22:59
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A
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C
D
E

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In Triangle ABC above, what is the length of side BC?

(1) Line Segment AD has length 6
(2) x = 36
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Re: DS: triangle [#permalink]

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New post 07 Sep 2008, 23:28
Can't see the image.....Can you please attach?
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Re: DS: triangle [#permalink]

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New post 07 Sep 2008, 23:36
I will go for E.

As per the diagram, BDC is an isosceles triangle. However, it is not known what ABD is.
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New post 07 Sep 2008, 23:51
OA is A.

I cannot follow the OE

Pls find it out from OG11, page 157, Question 117
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Re: DS: triangle [#permalink]

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New post 08 Sep 2008, 06:33
judokan wrote:
OA is A.

I cannot follow the OE

Pls find it out from OG11, page 157, Question 117


I beleive angle BAD is x, which is missing in the diagram.

In that case.. answer would be A.
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Re: DS: triangle [#permalink]

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New post 08 Sep 2008, 11:35
Yeah, we are missing a crucial element of the question here.

Agree with the above ( A ... if angle BAD is x)
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Re: DS: triangle [#permalink]

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New post 08 Sep 2008, 14:52
judokan wrote:
OA is A.

I cannot follow the OE

Pls find it out from OG11, page 157, Question 117



I don't see it here, are you sure that is the right reference?
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Re: DS: triangle [#permalink]

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New post 08 Sep 2008, 15:10
What is the explanation of why A) is sufficient please?
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Re: DS: triangle [#permalink]

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New post 08 Sep 2008, 18:10
snowbirdskier wrote:
judokan wrote:
OA is A.

I cannot follow the OE

Pls find it out from OG11, page 157, Question 117



I don't see it here, are you sure that is the right reference?


Sorry, i t should be in the green book. OG Quantitative Review. page no. is correct.
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Re: DS: triangle [#permalink]

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New post 08 Sep 2008, 20:10
thanks, just wasted 10 minutes trying this problem, and another 2 minutes looking for it in the wrong references

this is question #226 in OG10
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Re: DS: triangle [#permalink]

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New post 08 Sep 2008, 21:20
Yes, this question definately needs some more info..either bad or abd should be X

Otherwise it is E.
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Re: DS: triangle [#permalink]

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New post 09 Sep 2008, 05:41
if BAD = X, then how is the answer A?
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Re: DS: triangle [#permalink]

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New post 09 Sep 2008, 05:44
bigfernhead wrote:
if BAD = X, then how is the answer A?


say ABD=y

x+y+180-2x=180
--> x=y = ABD

So ABD isosceles triangle
thus AD= BD=6
BDC is isoceles triangle..
so BD=BC=6

SUFFICIENT.
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Re: DS: triangle   [#permalink] 09 Sep 2008, 05:44
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