Jawabanmu

2014-09-03T19:01:53+07:00
V = r x r x r
v = 50 x 50 x 50
v = 125.000 cm^3

v = 15 x 15 x 15
v = 3.375 cm^3


125.000 - 3.375 = 121.625 cm^3

maap jika salah. 
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