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Volume = prisma segi 4 trapesium
V = Luas alas x tinggi prisma
V = { ( 1 + 6 ) x 50 : 2 } x 50
V = ( 25 x 7 ) x 50
V = 175 x 50
V = 8750 m

8750 m = 8.750.000 liter (dm 3)