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GMATPrep - circles and squares

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Manager
Joined: 25 May 2009
Posts: 140
Concentration: Finance
GMAT Date: 12-16-2011
GMATPrep - circles and squares  [#permalink]

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07 Jun 2009, 17:09
00:00

Difficulty:

(N/A)

Question Stats:

100% (01:53) correct 0% (00:00) wrong based on 42 sessions

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The diameter of circle S is equal in length to the side of a certain square. The diameter of circle T is equal in length to a diagonal of the same square. The area of circle T is how many times the area of circle S?

A) sqrt(2)
B) sqrt(2) + 1
C) 2
D) Pie
E) sqrt(2)*Pie

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Intern
Joined: 27 May 2009
Posts: 36
Re: GMATPrep - circles and squares  [#permalink]

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08 Jun 2009, 00:59
Let s be the dia of circle S and t for circle T.
Now Let l be side of square.
so s=l
and
t=lXsqrt(2)( the diag of square with side l)

so area of both the circles will be proportional to square(t/2) and square(s/2)
which when calculated brings 2 as the ratio between them

--== 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.
Re: GMATPrep - circles and squares &nbs [#permalink] 08 Jun 2009, 00:59
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