The Box has perimeter of 48 inches which is a square.
Perimeter of square is side * side.

plugging value of perimeter here to get side


side =12 inches.
Area of square box = side *side = 12*12 =144 in².................(1)
Now we are given circumference of pizza as 37.68 inches.
Circumference of circle is given by:


finding r from here we have
r=6 inches.
Area of circle is given by :

plugging value of r,

Area of pizza = 113.04 in²...................(2)
Difference = (1) -(2) = 144 - 113.04 = 30.96 in²
the difference in the area of the pizza and the area of the pizza box is approximately 31 inches square.