Question

Find the surface area of a cylinder with d = 12 in: h = 14 in.
A.
113.04 sq. in.
B.
640.56 sq. in.
C.
527.52 sq. in.
D.
753.6 sq. in.

Answer 1

\(\bf \textit{total surface area of a cylinder}=2\pi r(h+r)
\\ \quad \\
r=radius=\frac{diameter}{2}\qquad \qquad h=height\)

Answer 2

37.68 + 20 = 58.68 (:

Answer 3

thanks

Answer 4

but its not my choices

Answer 5

yeah I think that person gave the wrong formula, do you know it?

Answer 6

no

Answer 7

I got it! the answer is D

Answer 8

thanks nina

Answer 9

The formula is SA = (2 x PI x r x H) + (2 x PI x (r x r). So when you calculate it you get 753.6 google is all you need if you don't have a formula haha and you're welcome ^.^