HAPPY PI DAY! Yes, I celebrate it!
Honestly, I don't like pie, so I made a cake instead. The cake itself is Betty Crocker's Silver White Cake, the chocolate glaze is also Betty's, and the white icing is basically sugar water. It was actually my first time using decorator's icing to write stuff, so for my first time, I think it worked out well.
On the cake, I calculated the cake's circumference and top area. The text is as follows:
circumference: 2πr = 2π * 11 cm = 22π cm ≈ 69 cm
area = πr^2 = π * 11 cm^2 = 121π cm ≈ 380 cm^2