Jawab:
Penjelasan dengan langkah-langkah:
1. Dik : D = 14 cm (r = 14 cm : 2 = 7 cm)
t = 10 cm
Dit : V?
Dij : V = Luas lingkaran x Tinggi
πr^2 x t
22/7 x 7 x 7 x 10
22 x 70 = 1.540 cm^3
2. Dik : r = 35 cm
t = 25 cm
Dit : V?
Dij : V = Luas lingkaran x Tinggi
πr^2 x t
22/7 x 35 x 35 x 25
22 x 5 x 35 x 25 = 96.250 cm^3
3. Dik : D = 21 cm (r = 21 cm/2 = 21/2 cm)
V = 9.702 cm^3
Dit : t?
Dij : V = Luas lingkaran x Tinggi
V = πr^2 x t
9.702 = 22/7 x 21/2 x 21/2 x t
9.702 = 11 x 3 x 21/2 x t
9.702 = 33 x 21/2 x t
9.702 x 2 = 33 x 21 x t
19.404 = 693 x t
t = 28 cm
4. Dik : V = 3.465 Liter = 3,465 m^3 (1 Liter = 1 dm^3 = 1/1.000 m^3)
r = 1 m
Dit : t?
Dij : V = Luas lingkaran x Tinggi
V = πr^2 x t
3,465 = 3,14 x 1^2 x t
3,465 = 3,14 x 1 x t
3,465/3,14 = t
t = 1,103 m
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