Answer:
1017.88
Step-by-step explanation:
1) Substitute what you know from the problem into the equation [tex]\pi[/tex][tex]r^{2}[/tex]h
2) After that you should have [tex]\pi[/tex]*81*4
3) Simplify to get 324
4) If you use 3.14 for pi you should get 1017.36 as your answer but if use just use pi you'll get