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Senior Manager
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29 Mar 2005, 05:33
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pls expl
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VP
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29 Mar 2005, 12:37
C) !

1) it could be a rhombus or a parallelogramm => insuff

2) it could be a square or a rhombus => insuff

1) + 2) it should be a rhombus. AC is longer that BD. draw it on an paper an you will see that it isnt`t possible that AC = BD or BD > AC.
Senior Manager
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29 Mar 2005, 15:16
Look at the two figures given below.

Though the angle ABC > BCD, the diagonals can be greater or smaller based on any situation.
....A......................B
.....____________
.....\......................\
.......\......................\
.........\......................\
...........\.___________\
............D......................C

and

...............A.....................B
.............._____________
--........../.........................\
.........../............................\
........../...............................\
........./________________\
........D.................................C

Insufficient.

From statement (2), if its a rhombus, then the answer is different (unknown) and if its a square, the answer is known (no).

Insufficient.

Combine them, and the first figure goes, and so the answer can be provided.

Hence (C).
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Who says elephants can't dance?

Manager
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09 Apr 2005, 20:42
BUT I KNOW,,,,,IF 1 SIDE IS COMMON ,,,,THEN SIDE OPPOSITE BIGGER ANGLE IS LONGER,,,

SO I GUESS A ,shold be it

OA?
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i hate when people do'nt post the OA, it leaves in guessing!!!!

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10 Apr 2005, 03:26
kapslock, you're definitely an engineer
Did you use AutoCad for that drawing?
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10 Apr 2005, 03:33
thearch wrote:
kapslock, you're definitely an engineer
Did you use AutoCad for that drawing?

And theArch, you're definitely Sherlock Holmes Yes I am an Engineer !!

Actually, I had to put in the dots because the "intelligent" software does not (or renders irregularly) the spaces, so the figure with spaces tend to go absolutely kaput
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10 Apr 2005, 09:30

I used a very simple trick...thought chrisoph is absolutely correct (but I forgot my rules, its been a while since I picked up my GMAT prep)

anyway my approach was this....knowing angle is not enough, I need to know the size (relative) of the sides as well...I guess I need two pieces of info, one the angle and the lenght of the sides to know if one particular side is bigger or not!

C it is...
VP
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10 Apr 2005, 14:37
kapslock wrote:
thearch wrote:
kapslock, you're definitely an engineer Did you use AutoCad for that drawing?

And theArch, you're definitely Sherlock Holmes Yes I am an Engineer !!
Actually, I had to put in the dots because the "intelligent" software does not (or renders irregularly) the spaces, so the figure with spaces tend to go absolutely kaput

Sherlock Holmes in GMAT too. Agree C and both of you.
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27 Nov 2009, 10:57
why cant A be sufficient ???
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