Answer: Area= 34.52
Step-by-step explanation: The formula is one-third times pi times radius to the second power times the height. The radius is 3 since the diameter is, so 3 time pi, or 3.14 is 9.42, times 11, since it is the height, equals 103.62. However, we still need to divide by one-third or 3. 103.62 divided by 3 equals 34.52.
Hopefully this helped. Sorry if I was incorrect.