Question 802563
Let the side of square be x

Area of square = x^2

length of rectangle=x+4
Width of rectangle = x-3

Area of rectangle = (x+4)(x-3)

=x^2+x-12

Bothe areas are same

x^2+x-12 = x^2

x-12=0
x= 12 the side of square

Area = 144 square m

(x+4)(x-3)

(12+4)(12-3)
16*9
=144 sqm