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Vol bandul = Vol Kerucut + Vol 1/2 bola
= 1/3πr² t + 4/3πr³
= 1/3π x20²x20 + 4/3πx 20³
= 2.666,667π + 5.333,333π
= 8.000π
Penambahan tinggi air pada balok karena ada bandul :
P x L x T = Vol balok
50 x40 x T = 8.000π
2.000T = 8.000π
T= 8.000/2.000π = 4π ...C
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37. maaf kurang mengerti maksudnya ....