Penjelasan dengan langkah-langkah:
1.V = 1/3 x Luas alas x tinggi
V = 1/3 x (3,14 x r x r) x t
3.543,4 = 1/3 x (3,14 x 9 x 9) x t
3.543,4 = 1/3 x (254,34) x t
3.543,4 = 84,78 x t
t = 3.543,4/84,78
t = 41,795235 cm
2.V = 1/3 x Luas alas x tinggi
V = 1/3 x (3,14 x r x r) x t
3.140 = 1/3 x (3,14 x 10 x 10) x t
3.140 = 1/3 x (314) x t
3.140 = 104,66667 x t
t = 3.140/104,66667
t = 29,999999
t = 30 cm