How large?
Let's say the pizza is round and is 18 inches in diameter. The area of a circle is pi * radius squared, so area = pi * 9^2 = 81 pi = 254.47 square inches. Remember radius = half of diameter.
Let's say the pizza is round and is 18 inches in diameter. The area of a circle is pi * radius squared, so area = pi * 9^2 = 81 pi = 254.47 square inches. Remember radius = half of diameter.
