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by Soumita Ghosh » Sun Jun 24, 2012 12:22 pm
Find the length of the longer diagonal of a
parallelogram two of whose sides are 34mm
and 94mm; their included angle is 105 degrees
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by tutorphd » Sun Jun 24, 2012 1:26 pm
Such a problem won't appear on GMAT because it requires trigonometry: the Cosine Theorem.

https://en.wikipedia.org/wiki/Cosine_theorem
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by KapTeacherEli » Sun Jun 24, 2012 10:21 pm
tutorphd wrote:Such a problem won't appear on GMAT because it requires trigonometry: the Cosine Theorem.

https://en.wikipedia.org/wiki/Cosine_theorem
That's correct. Fortunately for all of us, there is no trig on the GMAT!
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Kaplan GMAT Teacher
Cambridge, MA
www.kaptest.com/gmat

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