Answer:
A med - A small = (36 - 16)pi inch^2
= 20 pi inch^2
Explanation:
Area of medium pizza = 6^2 pi
Area of small pizza = 4^2 pi
A med = 36 pi inch^2
A small = 16 pi inch^2
A med - A small = (36 - 16)pi inch^2
Edited :sorry i thought that 8 and 12 where radiuses