Question

The aira of a square field is 5184m2 a rectangular field whose lenth is twice it's breadth,has its perimeter equal to the perimeter of square field find the aira of the rectangular field

Answer 1

Area of square=5184
Area of square=side^2
5184=side^2
√5184=side
72=side


Perimeter of square=4*side
=4*72
=288

Perimeter of square = perimeter of rectangle
l=2b
Perimeter of rectangle=288
Perimeter of rectangle=2(l+b)
288=2(l+b)
144=2b+b
144=3b
b=48
l=2*48=96

Area of rectangle= l*b
=96*48
=4608