Jawabanmu

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2014-08-13T20:11:48+07:00
Vol = p x l x t
48a^3=6a x 4a x t
48a^3=24a^2 x t
t=2a

L=2(pxl+lxt+pxt)
L= 2 (24a^2 + 8a^2 + 12a^2)
L=2(44a^2)
L=88a^2
2 5 2