Question

the length of a rectangle is twice its breadth. if its perimeter is 48 m, find the dimensions of the rectangle

Answer 1

Let the breadth be x
Hence the length would be 2x
we know that perimeter of rectangle is 2(l+b)
hence 48=2( 2x+x)
therefore 24=3x
hence 8=x

so the length is 16m and breadth is 8m.

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Answer 2

Let the breadth be x
then length=2x
now perimeter of rectangle=2(l+b)
48=2(2x+x)
2*3x=48
6x=48
nw x=8
hence breadth=x=8m
and length=2x=16 m
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