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# In circles C1 and C2

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Founder
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In circles C1 and C2 [#permalink]  09 May 2018, 09:40
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Question Stats:

47% (00:57) correct 52% (00:37) wrong based on 19 sessions
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#GREpracticequestion In circles C1C1 and C2.jpg [ 21.96 KiB | Viewed 998 times ]

In circles $$C_1$$ and $$C_2$$ , the length of segment $$PR$$ equals the length of segment $$QR$$

 Quantity A Quantity B The circumference of circle $$C_1$$ The circumference of circle $$C_2$$

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Active Member
Joined: 07 Jan 2018
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Kudos [?]: 772 [2] , given: 88

Re: In circles C1 and C2 [#permalink]  11 May 2018, 07:53
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we have two circles $$c1$$ and $$c2$$.
we also have two $$segments$$ that are equal PR and QR and $$length$$ PR and QR are equal too
However, we cannot conclude that $$P$$ and $$R$$ are the centre of the circles $$c1$$ and $$c2$$
nor can we derive the radius from the information given.
We do need the radius to find the circumference of the circle.
option D
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Manager
Joined: 26 Jan 2018
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GRE 1: Q165 V156
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Kudos [?]: 134 [0], given: 3

Re: In circles C1 and C2 [#permalink]  11 May 2018, 10:57
It cannot be concluded from the image that P and Q are centers of the respective circles. hence we do not know radii of the circles.
Director
Joined: 09 Nov 2018
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Kudos [?]: 56 [0], given: 1

Re: In circles C1 and C2 [#permalink]  19 Jan 2019, 16:14
Although look like, we are not sure P,Q are the centers
Re: In circles C1 and C2   [#permalink] 19 Jan 2019, 16:14
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# In circles C1 and C2

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