Volume = 9.000 cm³
l = 20 cm
t = 15 cm
Menentukan panjang balok
Volume = p × l × t
9.000 = p × 20 × 15
9.000 = p × 300
p = 9.000/300
p = 30 cm
Luas permukaan balok
= 2 × ((p × l) + (p × t) + (l × t))
= 2 × ((30 × 20) + (30 × 15) + (20 × 15))
= 2 × (600 + 450 + 300)
= 2 × 1.350
= 2.700 cm²
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Volume = 9.000 cm³
l = 20 cm
t = 15 cm
Menentukan panjang balok
Volume = p × l × t
9.000 = p × 20 × 15
9.000 = p × 300
p = 9.000/300
p = 30 cm
Luas permukaan balok
= 2 × ((p × l) + (p × t) + (l × t))
= 2 × ((30 × 20) + (30 × 15) + (20 × 15))
= 2 × (600 + 450 + 300)
= 2 × 1.350
= 2.700 cm²