Answers

2016-03-11T17:38:53+05:30
First find the ar of the rectangle ABCD
=28*40
=1120
then fimd the ar of semicircle=1/2 of circle
                                              =22/7*1/2*14*14
                                                =308
then subtract=arof ABCD-ar of semi cirlcle
                      =1120-308
                     =812
 this is the remaining ar of paper
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