Answers

2014-12-05T20:05:46+05:30
Breadth=x
length=2x
perimeter=2(l+b) 
              =2(2x+x)
              =6x
therefore
6x*5=3km
6x*5=3000cm
6x=600
x=100
therefore length=200cm
              breadth=100cm

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2014-12-05T20:08:13+05:30
Breadth=x
length=2x
perimeter=2(l+b)
=2(2x+x)
6xt herefore
6 x*5=3km6x*5=3000cm6x=600x=100 
therefore  length=200cm       
       breadth=100cm
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