Respuesta :

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      V = πr²h
  288 = 3.14(r²)(9)
  288 = 3.14(9r²)
  288 = 28.26r²
28.26   28.26
10.19 ≈ r²
  3.19 ≈ r

B = πr²
B = 3.14(3.19)²
B = 3.14(10.19)
B = 31.9966

Answer:

32

Step-by-step explanation:

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