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tiap orang dapat 16 kg
3. 11375 - 3375 = 8000
∛8000 = 20 cm, jadi panjang rusuk kubus yang lain adalah 20 cm
5. 216 = 6³
343 = 7³
512 = 8³
r1^3+r2^3 = 11.375
15^3 + r2^3 = 11.375
3.375 + r2^3= 11.375
r2^3 = 11.375 - 3.375 = 8000
r2 = akar pangkat3 dari 8000
r2 = 20
jadi rusuk nya 20 cm