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= phi . r² . t
= 3,14 . 10 . 10 . 19
= 5.966 cm³
vol bola = 4/3 . phi . r³
= 4/3 . 3,14 . 10 . 10 . 10
= 4.186,7 cm³
sisa = 5.966 - 4.186,7
= 1.779,3 cm³