Answer:
The answer is A.
Step-by-step explanation:
We need to find the least amount of paper needed to wrap the entire cylinder. Therefore, we simply need to find the surface area of the cylinder.
Recall the formula for the surface area of a cylinder:
[tex]SA=2\pi r^2+2\pi rh[/tex]
We know the diameter is eight inches, so the radius is four inches. We also know the height is 12. Using 3.14 for π, substitute:
[tex]SA=2(3.14)(4)^2+2(3.14)(4)(12)[/tex]
[tex]SA\approx 401.92\text{ in}^2[/tex]
Our answer is A.
