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data suff-doubts [#permalink] New post 23 Dec 2005, 22:41
20. Is quadrilateral Q a square?
(1) The sides of Q have the same length.
(2) The diagonals of Q have the same length.


This is a Qn from the ds collections(ds.zip-Section 1) i got in this site.In the answer collections its wriiten its C.

But i got the answer is E.bcos the quadilateral can have all its four sides equal without the angles being 90 degrees.

Square has 4 sides of equal lengths with all its angles 90 degrees.ISnt it the definition of square?

can someone explain this?
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Re: data suff-doubts [#permalink] New post 23 Dec 2005, 23:04
preethag wrote:
20. Is quadrilateral Q a square?
(1) The sides of Q have the same length.
(2) The diagonals of Q have the same length.


This is a Qn from the ds collections(ds.zip-Section 1) i got in this site.In the answer collections its wriiten its C.

But i got the answer is E.bcos the quadilateral can have all its four sides equal without the angles being 90 degrees. Correct, it can be a rhombus!

Square has 4 sides of equal lengths with all its angles 90 degrees.ISnt it the definition of square? Correct. This also means that diagonals of a sqaure are of equal length!

can someone explain this?


I'm not sure whether you have considered 1 & 2 together. From your explanation, it looks like you are considering only choice 1.

If you consider 1 & 2 together, you will get the answer!

'C' is the correct answer.

PS: Please post Quant question in Quant section of the forum!
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 [#permalink] New post 24 Dec 2005, 21:04
Wrong forum. Must be in Quantitative Forum.
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SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

  [#permalink] 24 Dec 2005, 21:04
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