Pizzas are circles, and the formula to find the area of a circle is r²π=a.
The diamter split in half can easily show you the radius, so let's solve the first portion of this question.
14÷2=7
7²=49π≈ 153.94
Now, there are two large pizzas. We have to multiply by 2.
153.94×2= 307.88
So there's about 307.88² inches of pizza.