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In the circle with center O above, chord QS is perpendicular [#permalink]

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27 Mar 2013, 04:05

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A

B

C

D

E

Difficulty:

55% (hard)

Question Stats:

71% (03:41) correct
29% (03:33) wrong based on 76 sessions

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In the circle with center O above, chord QS is perpendicular to radius OR. If QS = 16 and PR = 4, what is the area of the circle ?

(A) 80 π (B) 100 π (C) 125 π (D) 144 π (E) 256 π

Please see the above mentioned circle in the attachment . The OA should be (B), this problem is part of a set of GMAT PS exercises given to me for training by a friend .

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