Jawaban:

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Penjelasan dengan langkah-langkah:

1) V = ⅓πr²t

2.512 = ⅓ x 3,14 x 10² x t

2.512 = 314/3 x t

2.512 x 3 = 314 x t

7.536 = 314 x t

t = 7.536/314

t = 24 cm

2) V = ⅓πr²t

1.782 = ⅓ x 22/7 x 9² x t

1.782 = 1.782/21 x t

1.782 x 21 = 1.782 x t

37.422 = 1.782 x t

t = 37.422/1.782

t = 21 cm

3) V = ⅓πr²t

314 = ⅓ x 3,14 x 5² x t

314 = 78,5/3 x t

314 x 3 = 78,5 x t

942 = 78,5 x t

t = 942/78,5

t = 12 cm

4) r = d/2 = 28/2 = 14 cm

V = ⅓πr²t

6.160 = ⅓ x 22/7 x 14² x t

6.160 = 616/3 x t

6.160 x 3 = 616 x t

18.480 = 616 x t

t = 18.480/616

t = 30 cm