Answer:
92.9 cm squared
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 the diameter is 3.4 cm, so the radius, which is half the diameter, is r = 3.4 / 2 = 1.7 cm. The height is 7. Plug these in:
[tex]A=2\pi r^2+2\pi rh[/tex]
[tex]A=2\pi *1.7^2+2\pi *1.7*7=29.58\pi[/tex]
29.58π ≈ 92.9 cm squared
