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=9,2³
=778,688 dm²
jadi volume bak tersebut adalah 778,688 liter
luas permukaan kubus = 6.s2
=6 x 9,2²
=6 x 84,64
=507,84 dm²
jadi luas permukaan bak tersebut 507,84 dm ²
Luas permukaan tanpa tutup = 9,2 × 9,2 dm² × 5
= 423,2 dm²