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Bab Bangun RuangMatematika SMP Kelas VIII
tabung
r = d/2 = 24/2 = 12 cm
tinggi air = 3/5 x tinggi tabung
tinggi air = (3/5) x 50
tinggi air = 30 cm
volume 3 bola = 3 x (4/3) x π x r x r x r
volume 3 bola = 4 x 3,14 x 6 x 6 x 6
volume 3 bola = 2.712,96 cm³
kenaikan air = volume 3 bola / luas alas tabung
kenaikan air = 2.712,96 / (3,14 x 12 x 12)
kenaikan air = 6 cm
tinggi air dalam tabung = 30 + 6
tinggi air dalam tabung = 36 cm