Answer:
S.A. = 1,017.36
Step-by-step explanation:
S.A. = [tex]\pi r^{2} + \pi rl[/tex]
12 x 12 x 3.14 = 452.16
3.14 x 12 x 15 = 565.2
565.2 + 452.16 = 1,017.36
