The ratio between the length and breadth of a rectangle is 5:4.If the perimeter of the rectangle is 90 m, find its length and bread
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Let the length and breadth of a rectangle be x,y respectively
Given Ratio of length and breadth of the rectangle is 3:1
⟹x:y=3:1⟹
y
x
=
1
3
⟹x=3y
Perimeter of a rectangle is 36 cm
⟹2(x+y)=36
⟹3y+y=18⟹y=
4
18
=4.5
⟹x=3y=3×4.5=13.5
The length and breadth of a rectangle is 4.5 cm,13.5 cm respectively
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