By definition, the surface area of a cone is given by: [tex]A = \pi * r ^ 2 + \pi * r * l
[/tex] Where, r: radius of the circular base l: inclined height. Substituting values we have: [tex]A = \pi * 2 ^ 2 + \pi * 2 * 6
[/tex] Rewriting we have: [tex]A = 4 \pi + 12 \pi
A = 16 \pi units ^ 2[/tex] Answer: its surface area is: b.16pi units ^ 2
