Answer: 65.5 inches of the box is empty.
Step-by-step explanation:
Given : Diamter of circular pizza =10 inches
Then, radius =[tex]\dfrac{10}{2} = 5\text{ inches}[/tex]
Area of circle = [tex]\pi r^2[/tex]
Area of pizza = [tex]3.14\times(5)^2=78.5\ sq. inches.[/tex]
Side of square = 12 inches
Area of square = side x side.
Area of square = 12 x 12 = 144sq. inches.
Area of box empty = Area of square - Area of pizza
= 144-78.5 sq. inches
= 65.5 inches
Hence, 65.5 inches of the box is empty.