Answer:
282.6
Step-by-step explanation:
Surface area of a cylinder
= 2pi rh + 2pi r^2
Given radius = 3
Height h = 12
Pi = 3.14
Surface area = 2 x 3.14 x 3 x 12 + 2 x 3.14 x (3)^2
2 x 3.14 x 3 x12
+
2 x 3.14 x 3 x 3
Simplify each sides
226.08 + 56.52
282.6
