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Is Quadrilateral ABCD a Square? 1) Diagonals of ABCD Bisect each oth

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Is Quadrilateral ABCD a Square? 1) Diagonals of ABCD Bisect each oth  [#permalink]

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New post 07 May 2017, 20:19
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A
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  35% (medium)

Question Stats:

55% (00:22) correct 45% (00:35) wrong based on 125 sessions

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Is Quadrilateral ABCD a Square?

1) Diagonals of ABCD Bisect each other at 90 degrees
2) Diagonals of ABCD are equal in dimension

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Re: Is Quadrilateral ABCD a Square? 1) Diagonals of ABCD Bisect each oth  [#permalink]

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New post 07 May 2017, 20:24
GMATinsight wrote:
Is Quadrilateral ABCD a Square?

1) Diagonals of ABCD Bisect each other at 90 degrees
2) Diagonals of ABCD are equal in dimension

Source: http://www.GMATInsight.com


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Re: Is Quadrilateral ABCD a Square? 1) Diagonals of ABCD Bisect each oth  [#permalink]

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New post 07 May 2017, 20:27
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Imho C

Statement 1: diagonals of both square and rhombus bisect at 90 degrees. Can't say certainly as square. Hence not sufficient.
Statement 2: diagonals of both rectangle and square are equal. Can't say certainly as square. Hence not sufficient.

Combining 1 and 2 the quadrilateral with equal diagonals bisecting each other at 90 degrees is a square hence sufficient.

Ans C


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Re: Is Quadrilateral ABCD a Square? 1) Diagonals of ABCD Bisect each oth  [#permalink]

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New post 10 Jan 2019, 10:56
for a square- diagonals should cut at 90 degrees and should be equal, answer C
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Re: Is Quadrilateral ABCD a Square? 1) Diagonals of ABCD Bisect each oth &nbs [#permalink] 10 Jan 2019, 10:56
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