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If triangle ABC is an isosceles triangle

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Magoosh GMAT Instructor
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If triangle ABC is an isosceles triangle [#permalink] New post 05 Nov 2012, 12:37
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Question Stats:

57% (01:27) correct 42% (00:28) wrong based on 2 sessions
If triangle ABC is an isosceles triangle, what is ∠ABC?

(1) ∠CAB = 45 degrees
(2) ∠BCA = 90 degrees

For a detailed discussion of that most amazing geometric theorem, the Isosceles Triangle Theorem, as well as a video explanation of this particular question, see this this link:
http://magoosh.com/gmat/2012/isosceles- ... -the-gmat/
[Reveal] Spoiler: OA

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Re: If triangle ABC is an isosceles triangle [#permalink] New post 05 Nov 2012, 15:12
hi Mike

I think this question is same as in the gmat prep 1
only value is changed to 90
Re: If triangle ABC is an isosceles triangle   [#permalink] 05 Nov 2012, 15:12
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