Question 365456
1) Area is 83 sq ft
Let x = length of side of square

  x^2 = 83
    x  = 9.11 ft

2)Area of circle = 72 sq cm
Let r = radius of circle in cm
 pi*r^2 = Area of circle
 3.1416*r^2 = 72
        r^2 = 72/3.1416
          r = sq root of 22.918
          r = 4.79 cm