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2014-03-16T08:37:24+07:00
V kubus 1 = 64 cm
V kubus 2 = 1/8 * 64 = 8 cm
V kubus 1 = 64
s*s*s = 64
s = 4
V kubus 2 = 8
s*s*s = 8
s = 2
L permukaan kubus 1 = 6 * s*s
= 6*4*4
= 96
L permukaan kubus 2= 6*s*s
= 6*2*2
= 24
jumlah luas = 96 + 24 = 120
2 3 2