The formula of a Surface Area of a cylinder:
[tex]S.A.=2\pi r^2+2\pi rH[/tex]
r - radius
H - heihgt
We have r = 3mm and H = 16mm. Substitute:
[tex]S.A.=2\pi(3)^2+2\pi(3)(16)=2\pi(9)+2\pi(48)=18\pi+96\pi=114\pi\ mm^2\\\\\pi\approx3.14\to S.A.\approx114\cdot3.14=357.96\ mm^2[/tex]
Answer: B. 357.96 mm^2
