What is the difference in square inches between the area of 8-inch circular plate and the area of an 8-inch square plate?

The area of an 8-inch circular plate is calculated using the formula ( A = \pi r^2 ), where the radius ( r ) is 4 inches. Thus, the area is approximately ( 50.27 ) square inches. The area of an 8-inch square plate is ( 8 \times 8 = 64 ) square inches. The difference in area between the square plate and the circular plate is ( 64 - 50.27 \approx 13.73 ) square inches.