if the length of a rectangle are doubled ,how many times the perimeter of the old rectangle will that of the new rectangle be?
aliyashaikh18:
plzz answer
I m sure the ans is double
your answer is right but,
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The perimeter will also get doubled
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the old perimeter of rectangle =2(l+b)
if the lenght of rectangle is double
the new lenght is =2l
new perimeter is 2(2l+b)
let suppose l=1 and b=2
the old perimeter is 2(1+2)=6
new perimeter is 2(2+2)=8
then increasing in perimeter is 33.3%
if the lenght of rectangle is double
the new lenght is =2l
new perimeter is 2(2l+b)
let suppose l=1 and b=2
the old perimeter is 2(1+2)=6
new perimeter is 2(2+2)=8
then increasing in perimeter is 33.3%
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