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kubus ada 12 rusuk
panjang rusuk 384 : 12 = 32
kedua (b)
Lp = 6 x s x s = 6 x 32 x 32 = 6144
ketiga (c)
V = S^3 = 32.768
panjang kawat = 384 cm
maka :
a. Kerangka = 12 x sisi
384 = 12 sisi
sisi = 384 / 12 = 32 cm
jadi panjang rusuk 32 cm
b. Lp = 32² x 6
= 6.144 cm²
c. Volume = 32³
= 32.768 cm³