Question

the area of rectangular plot is 460m square. If the length is 15% more than its breadth, find the perimeter of the plot.​

Answer 1

Answer:

86 m

Step-by-step explanation:

=>Area of rectangular plot =460m²

=>Length of the plot is 15% more than it's breadth.

To find:-

=>Perimeter of the plot

Solution:-

=>Let the breadth of the plot be x

=>Then, length of the plot=15% of x

=>15x/100

=>3x/20

=>x+3x/20

=>23x/20

=>Area of a rectangle=Length×Breadth

=>23x/20×x=460

=>23x²/20=460

=>x²=460×20/23

=>x²=400

=>x=20

=>Thus, breadth of the plot is 20m

=>And length=23×20/20=23m

=>Perimeter of a rectangle=2(l+b)

=>2(20+23)

=>2×43

=>86m

Thus, perimeter of the plot is 86m.

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