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# Is MNP isosceles? (1) Exactly two of the angles, Angle M and

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Intern
Joined: 11 Jul 2008
Posts: 37
Is MNP isosceles? (1) Exactly two of the angles, Angle M and [#permalink]

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05 Aug 2008, 19:34
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(N/A)

Question Stats:

100% (00:01) correct 0% (00:00) wrong based on 14 sessions

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Is ΔMNP isosceles?

(1) Exactly two of the angles, Angle M and Angle N, have the same measure
(2) Angle N and Angle P do not have the same measure.

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Senior Manager
Joined: 23 May 2006
Posts: 311

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05 Aug 2008, 19:54
S1. tells you that two angles are equal and hence the two corresponding sides are also equal hence isosceles
S2. The third angle could be anything 180 -x - y.

IMO A
Director
Joined: 27 May 2008
Posts: 539

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06 Aug 2008, 01:49
should be A

interesting discussion on defition of isoceles triangle .. 7-t68126
VP
Joined: 17 Jun 2008
Posts: 1322

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06 Aug 2008, 18:19
x2suresh wrote:
xang wrote:
Is ΔMNP isosceles?

(1) Exactly two of the angles, Angle M and Angle N, have the same measure
(2) Angle N and Angle P do not have the same measure.

A.

(1) says both angles are equal hence isosceles INSUFFI
(2) N and P not equal what if M,N or M,P are equal hence isosceles INSUFFI

hence IMO A
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Its Now Or Never

Intern
Joined: 11 Jul 2008
Posts: 37

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07 Aug 2008, 05:02
durgesh79 wrote:
should be A

interesting discussion on defition of isoceles triangle .. http://gmatclub.com/forum/7-t68126

OA is A.

My doubt was wheter a Equilateral triangule were Isosceles.

Thanks durgesh79 for the discussion post! It was very helpful!
SVP
Joined: 07 Nov 2007
Posts: 1760
Location: New York

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07 Aug 2008, 06:10
xang wrote:
durgesh79 wrote:
should be A

interesting discussion on defition of isoceles triangle .. http://gmatclub.com/forum/7-t68126

OA is A.

My doubt was wheter a Equilateral triangule were Isosceles.

Thanks durgesh79 for the discussion post! It was very helpful!

obvisously equilatral triangle is an isosceles triangle.

In this question.

Statement 1 --> tells that there is triangle with exactly two angles are equal. can this answer the question.
Yes, this must be isosceles triangle.. it answered the quesiton. so Option A is correct.

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If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: DS - Isosceles   [#permalink] 07 Aug 2008, 06:10
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