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BdMO national Junior 2010/10

Posted: Sun Feb 24, 2019 9:47 am
by samiul_samin
$ABCD$ is a quadrilateral.$P,Q$ and $R$ are the midpoints of $AB,BC$ and $CD$ respectively.If $PQ=3,QR=4$ and $PR=5$;find the area of $ABCD$.