Andy wants to order a cookie cake for a birthday party. He plans to split between 12 people, with each person getting a piece that is at least 4 square inches. What is the radius of the smallest size cookie cake he could get?

Answer 1

So he wants the area to be 4(12) or 48 inches^2

πr^2 = 48
r^2 = 48/π
r = appr 3.9 inches