Answer: second option.
Step-by-step explanation:
We know that we can calculate the surface area of a cone with this formula:
[tex]SA=\pi rl + \pi r^2[/tex]
Where "r" is the radius and "l" is the slant heigth.
We know that the radius is half the diameter, then the radius of this cone is:
[tex]r=\frac{11in}{2}\\\\r=5.5in[/tex]
Since we know tha radius and the slant height, we can substitute values into the formula, using 3.14 for π.
Therefore, we get:
[tex]SA=(3.14)(5.5in)(28.5in) + (3.14)(5.5in)^2=587.18in^2[/tex]
