A 14-inch pizza has an area of approximately 154 square inches. This is calculated using the formula for the area of a circle, πr2\pi r^2πr2, where the radius is half the diameter (7 inches for a 14-inch pizza) and π\pi π is approximately 3.14. So the calculation is 3.14×7×7=153.863.14\times 7\times 7=153.863.14×7×7=153.86 square inches, often rounded to 154 square inches.
