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quadrilateral

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quadrilateral

by Chrystelle » Fri Jan 12, 2007 6:58 am
Quadrilateral PQRS has PQ=QR=RS=5, If angle R=90 and angle Q=135 what is the area of the quadrilateral?
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by thankont » Fri Jan 12, 2007 9:27 am
If you know the answer is it --> 25*sqrt(2)/4 ?
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by Chrystelle » Sun Jan 14, 2007 9:40 am
don't hav the anwer.
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Re: quadrilateral

by aim-wsc » Sun Jan 14, 2007 10:10 am
Chrystelle wrote:Quadrilateral PQRS has PQ=QR=RS=5, If angle R=90 and angle Q=135 what is the area of the quadrilateral?
take a look at the figure
split the quadrilateral into two triangles namely PQS and SRQ

both triangles are right angle triangles
that makes the problem easy.
now i want you to try this one more time...
present your explanation :)
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quadrilateral.JPG
such a pain !!!! :| :| :lol:

my first drawing
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