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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Answer:
Let the common multiple be x
hence no.s are 9x and 5x
Perimeter of rectangle = 2(l+b)
280 = 2(9x + 5x)
280 = 2(14x)
280 = 28x
x = 280/28 = 10
Length = 9x = 90m
Breadth = 5x = 50m
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Answer : 4500 meter square
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