Matematika

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???????????? Tolong jwb y

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2 Jawaban

  • V=πr²t=22/7*8²*14=2816 cm³=2,816 l

  • Volume tabung = π X r² X t = 22/7 X 8 X 8 X 28
                             = 22 X 8 X 8 X 4 = 176 X 8 X 4 = 1.408 X 4 = 5.632 cm³
    Volume air = 1/2 X 5632 = 1 X 2.816 = 2.816 cm³

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