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Is quadrilateral MNOP a square?

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Is quadrilateral MNOP a square? [#permalink] New post 17 Jan 2013, 04:53
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Is quadrilateral MNOP a square?

(1) MN = NO = OP
(2) Angle N and angle O are right angles
[Reveal] Spoiler: OA

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Re: Is quadrilateral MNOP a square? [#permalink] New post 17 Jan 2013, 05:04
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This one looks so easy you might think there is a trap; definitely C.
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Re: Is quadrilateral MNOP a square? [#permalink] New post 17 Jan 2013, 05:23
highdiving wrote:
This one looks so easy you might think there is a trap; definitely C.


So true, I was wondering what would the diagram look like for statement 1...
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Re: Is quadrilateral MNOP a square? [#permalink] New post 17 Jan 2013, 06:41
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fozzzy wrote:
highdiving wrote:
Is quadrilateral MNOP a square?

(1) MN = NO = OP
(2) Angle N and angle O are right angles

This one looks so easy you might think there is a trap; definitely C.


So true, I was wondering what would the diagram look like for statement 1...


For (1) MNOP may or may not be a square as shown below:
Attachment:
Untitled.png
Untitled.png [ 3.79 KiB | Viewed 1537 times ]
Hope it helps
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Re: Is quadrilateral MNOP a square? [#permalink] New post 17 Jan 2013, 06:49
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It does help, thank you; Visual aids like this one will be very helpful under stressful and timed conditions when one might momentarily confuse a general quadrilateral with a square specifically. Remembering this drawings will definitely help!
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Re: Is quadrilateral MNOP a square? [#permalink] New post 12 Jan 2014, 05:19
fozzzy wrote:
Is quadrilateral MNOP a square?

(1) MN = NO = OP
(2) Angle N and angle O are right angles



Stupid, annoying question (sorry, I just had to vent):

1) tells us the lengths of three sides but this theoretically still could leave us with a fourth side that is longer/shorter than the rest, so insufficient

2) Tells us that our quadrilateral is either a rectangle or a square, insufficient.

1 + 2 tell us that our quadrilateral is a square, because 2) restricts the possible shapes that 1) can take, and combining the two tells us how long the fourth side in 1) is, so sufficient.

C
Re: Is quadrilateral MNOP a square?   [#permalink] 12 Jan 2014, 05:19
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