Answer:
Total surface area of four cake layers = 1,205.76 square inches
Step-by-step explanation:
Total surface area of a cylinder =
[tex]2\pi \: rh \: + 2\pi {r}^{2} [/tex]
= (2 × 3.14 × 6 × 2) + (2 × 3.14 × 6 × 6)
= 75.36 + 226.08
= 301.44
Total surface area of one cake layer = 301.44
Total surface area of four cake layers = 1,205.76 square inches