If the length of the rectangle is increased by 40% and its breadth is decreased by
40%, what will be the percentage change in its perimeter?
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2
Answer:
there will be no change in perimeter...
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it cant be determined
suppose,
a rectangle with l =60 and b=140
p1=400
therefore, new l2=60+24=84 and b=140-56=86
p2=2(84+86)=2(170)=340
therfore,
%change
=((change in perimeter)/initial perimeter)*100
=((60)/400)*100
15%
if rectangle is of
l1=100 and b1=100
p1=400
then,
l2=140 and b2=60
p2=400
therefore,
%change
=0%
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