volume balok = 18x7x19 = 2394
( ingat rumus volume tabung dan 3,5 = 7/2)
volume tabung = 22/7 *(7/2)*(7/2)*18 = 11x7x9 = 693
ruang antara balok-tabung = 2.394 - 693 = 1.701
volume air = 7/9(1.701) = 1.323 cm kubik
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volume balok = 18x7x19 = 2394
( ingat rumus volume tabung dan 3,5 = 7/2)
volume tabung = 22/7 *(7/2)*(7/2)*18 = 11x7x9 = 693
ruang antara balok-tabung = 2.394 - 693 = 1.701
volume air = 7/9(1.701) = 1.323 cm kubik