Question

perimeter of a rectangular plot is 180 m and its area is 1800 metre square the length of the plot as X metre use the perimeter 180 metre to write the value of breath in terms of x use the value of Length, breadth and area to write an equation in X solve the equation to calculate the length and breadth of the plot

Answer 1

Answer:

let X is the length and x breadth of rectangle.

Then perimeter is 2(X+x) =180 so X+x=90

Area is Xx=1800

(X+x)^2 =8100

and X²+x²=8100-3600=4500

(X+x)²+(X-x)²=2(X²+x²)

and (X-x)²=900

X-x=30

so X is 60 and x is 30...