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# Is quadrilateral ABCD a square? (See attached doc for the

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VP
Joined: 03 Apr 2007
Posts: 1376
Followers: 3

Kudos [?]: 269 [0], given: 10

Is quadrilateral ABCD a square? (See attached doc for the [#permalink]  01 Jun 2008, 07:42
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Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Is quadrilateral ABCD a square? (See attached doc for the diagram)
(1) AB = BC = CD = DA
(2) x + y = 180
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is
sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient
Attachments

diagram.doc [126 KiB]

Current Student
Joined: 28 Dec 2004
Posts: 3390
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 13

Kudos [?]: 182 [0], given: 2

i get c.

in order for this to be a square, not only do they have to be equal and ||...and the sum of the two adjacent angles is 180..
Director
Joined: 23 Sep 2007
Posts: 794
Followers: 5

Kudos [?]: 101 [0], given: 0

E, I think the rhombus would satisfy the 2 conditions
Senior Manager
Joined: 06 Aug 2007
Posts: 370
Followers: 1

Kudos [?]: 23 [0], given: 0

gmatnub wrote:
E, I think the rhombus would satisfy the 2 conditions

The answer is E - because of the stated reason above - it can be a rhombus since the adjacent angles are supplementary
VP
Joined: 03 Apr 2007
Posts: 1376
Followers: 3

Kudos [?]: 269 [0], given: 10

from

stat1 : the quadrilateral can be a square or rhombus
insuff
stat2 : teh quad can be a ||lgram or a rhombus

from 1 and 2
the quad can be a square or a rhombus
insuff

E
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