V = π x r x r x t
V = 3,14 x 8 cm x 8 cm x 30 cm
V = 6.028,8 cm³
Jawaban:
V= πr²t
V= 22/7 x 7cm² x 10 cm
V= 1.540 cm³
V= 22/7 x (7/2 x 7/2)cm² x 12 cm