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by satish.nagdev » Sat Dec 19, 2009 8:55 am
mmslf75 wrote:If the area of a parallelogram is 100, what is the perimeter of the parallelogram?

1. The base of the parallelogram is 10.
2. One of the angles of the parallelogram is 45 degrees.


OA is C

Source GMATClub...

IMO E

Parallelo is a RHOMBUS
Therfore, I can very well summarize that Area is .5 d1 d2

Answer E

I am missing something here..

Or should i say area is Base * Width ?
true rhombus is parallelogram but from stmt 1 we can't say so because we don't know if other side is 10

stmt2 alone is not sufficient because it doesn't give lengths of sides

combined
we can determine other side as 10*sqrt(2) using Sin(45) and hence parameter can be found.
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by satish.nagdev » Sat Dec 19, 2009 8:56 am
by the way this question is DS not PS please post in correct section for the sake of other members
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