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K als = 64 cm
maka :
K alas = 4 x sisi
64 = 4 x sisi
sisi = 64/4
sisi = 16 cm
a. jumlah rusuk = 12 x 16 = 192 cm
b. Luas sisi = 6 x sisi²
= 6 x 256
= 1.536 cm²
c. Volume = sisi³
= 16³
= 4.096 cm³
= 64 : 4
= 16 cm
a) jmlh p.slruh rusuk kbus = 12.s = 12.16 = 192 cm
b) L sisi = 6.s² = 6.16² = 6.256 = 1536 cm²
c) V kubus = s.s.s = 16.16.16 = 4096 cm kubik