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The breadth of a rectangle is half of the length,if the perimeter of the rectangle is 30cm,find the length and breadth.

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and b be x/2

then,

2(l+b)=perimeter

2(x+x/2)=30

3x=30

x=10

therefore,

length=10cm

breadth= 5cm

given perimeter is 30m,that is 2(x+x/2)=3x=30

x=10

therefore length of given rectangle is 10m and its breadth is 5m.