Find the circumference: (use 3.14 for pi):
The circumference = _ mm.

the answer is 1030 it's very simple math.

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!