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# Is quadrilateral RSTV a rectangle? (1) The measure of Angle

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Director
Joined: 15 Aug 2005
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09 Oct 2005, 01:50
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(1) The measure of Angle RST is 90 degree
(2) The measure of Angle TVR is 90 degree
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Cheers, Rahul.

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Manager
Joined: 18 Aug 2005
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09 Oct 2005, 03:52
I believe it's E...

In the file I drew a figure that shows why the quadrilater it's not necessarly a rectangle.

Ciao
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"To win the battle you need to last 15 minutes longer than your enemies"

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Director
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09 Oct 2005, 11:33
I think C

If two opposite angles are 90 deg each, i think it has to be a rectangle.

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SVP
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09 Oct 2005, 12:12

other 2 angles might not be 90 degree....
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hey ya......

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Manager
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09 Oct 2005, 17:34
I agree with GSR's logic, (c) b/c two opposite angles of a quadrilateral must make a rectangle.

If they had said <STV was also 90 then I would choose D.

B.

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Director
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09 Oct 2005, 17:46
nakib77 wrote:

other 2 angles might not be 90 degree....

Im not quite sure how you could possibly say that! Can you explain?
OA is E! I chose C!
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Cheers, Rahul.

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VP
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09 Oct 2005, 18:21
Wow, I chose C too! Please explain!

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Manager
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09 Oct 2005, 21:33
I get (E)

statements I & II are not sufficient alone, which is obvious. together, we only know that the opposite angles are both 90. Consider the attachment (picture), thus (E)
Attachments

gmatclub.gif [ 1.88 KiB | Viewed 907 times ]

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Senior Manager
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09 Oct 2005, 22:20
Chets: Could pls attach the picture? Thanks.

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09 Oct 2005, 22:20
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