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vol kubus akhir = 6 x 6 x 6 = 216cm³
perubahan vol
729 - 216 = 513cm³
= r1 x r1 x r1 : r2 x r2 x r2
= 9 x 9 x 9 : 6 x 6 : 6
= 729 : 216
--------------- : 27
= 27 : 8
volumenya jadi mengecil 8/27 kali lipat