Assuming you would like to find the volume . . . . .
Answer:
113.04
Explanation:
To find volume, the formula is pi x r^2.
Let's replace the values.
3.14 * 6^2
Note that the radius is 6 since r = 1/2 d.
Now we just need to solve.
= 3.14 * 36
= 113.04
Assuming you want to solve for surface area . . . . .
The formula is long but it is:
SA =2πrh+2πr^2
Replace the values.
SA = 2 (3.14)(6)(11.5) + 2 (3.14)(6) ^2
Simplify.
6.28 (69) + 6.28 (36)
= 433.32 + 226.08
= 659.4