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t= 1,2 m= 12 dm
V. tabung :
π × r² × t
22/7 × 3,5 × 3,5 × 12
22/2 × 3,5 × 12
11 × 3,5 × 12
38,5 × 12
462 liter
Maka, harga 1 drum adalah :
462 × 6.800
3.141.600
Jadi, harga 1 drum premium adalah Rp 3.141.600,00.
d = 70 cm
r = 35
tinggi = 1,2 m = 120 cm
maka :
V = π x r² x t
= 22/7 x 35² x 120
= 22/7 x 1225 x 120
= 462.000 cm³ = 462 liter
maka harga 1 drum = 6.800 x 462 = Rp 3.141.600