8. The length and breadth of a rectangular plot are in the ratio 9:5. If its perimeter is 280 m, find its area.
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Let the length and breadth be x
Perimeter of rectangle= 2(l+b)
=2(9x+5x)=280
2(14x)=280
28x=280
X=280/28
X=10
Now,
Length=9x
=9(10)
=90m
Breadth=5x
=5(10)
=50m
Perimeter of rectangle= 2(l+b)
=2(9x+5x)=280
2(14x)=280
28x=280
X=280/28
X=10
Now,
Length=9x
=9(10)
=90m
Breadth=5x
=5(10)
=50m
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