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sisi atau rusuk=√L
=√144
= 12 dm
a.karena kubus maka semua sisi ukurannya sama
jadi kedalaman= t = 12 dm
b.V= s³
=12³
=1728 dm³
semoga bantu yaaa
alas kubus = sisi x sisi
144 dm2 = sisi2
sisi = √ 144 = 12dm
a) kedalaman bak = sisi = 12dm atau 120cm
b) vol bak = s x s x s = 12x12x12 = 1728 dm3 = 1728 liter