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rusuk=15
a.)luas permukaan=15×15×6=1350cm²
b.)volume=15³=3375 cm³
Diagonal ruang = s√3
= 15√3
Maka,
s = 15 cm
Dijawab :
a. Luas permukaan = 6s²
= 6 . 15 . 15
= 1350 cm²
b. Volume = s³
= 15 . 15 . 15
= 3375 cm³
Itu jawabannya.