A customer who ordered a 9-inch pizza and got two 5-inch pizzas

(1)I ordered a nine-inch pizza and after a while the waiter brought me two five-inch pizzas and saidI don’t have a 9-inch pizza, so I’ll give you two 5-inch pizzas insteadYou’re getting an inch for free!
(2)I asked the waiter to call the owner
(3)I explained to him the mathematical formula for calculating the area of a circle
(4)The original area is calculated as 2
(5)Here, 31415926r is the radius of the circle
(6)Therefore, a 9-inch circle has an area of 6362 square inches
(7)The area of a five-inch circle will be 1963 square inches
(8)Even if there are two 5-inch circles
(9)Take Maths Serious! The area is only 3,926 square inches
(10)Even if I get three 5-inch pizzas, I’m still at a loss
(11)”How can you say that you’re giving me an inch for free?”
(12)The shopkeeper lost his words and I got four pizzas
(13)Don’t look at math as water!