Respuesta :
Answer: 7
Step-by-step explanation:
volume of a cylinder = πr²h
441π = π *r²* 9
divide both sides by 9π
49 = r²
r =√49 = 7
Answer: 7
Step-by-step explanation:
volume of a cylinder = πr²h
441π = π *r²* 9
divide both sides by 9π
49 = r²
r =√49 = 7