Answer:
7241.25 mm squared
Step-by-step explanation:
The surface area of a cylinder is denoted by: [tex]A=2\pi r^2+2\pi rh[/tex], where r is the radius and h is the height.
Here, we know that the diameter is 39.2 mm, and since diameter is twice the radius, then r = d/2 = 39.2/2 = 19.6 mm. We also know that the height is 39.2 mm, so plug these values in:
[tex]A=2\pi r^2+2\pi rh[/tex]
[tex]A=2\pi (19.6)^2+2\pi *19.6*39.2=7241.25[/tex] mm squared
The answer is about 7241.25 mm squared.
