Find the volume of a cubical box whose surface area is 486cm².
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Answered by
5
Answer:
729 cm³
Step-by-step explanation:
Surface area = 6a² = 486 cm²
6a² = 486 cm²
a² = 486 /6
a² = 81
a = √81
a = 9 cm
Edge = a = 9 cm
Volume = a³ = 9³ = 729 cm³
Answered by
35
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Answer
◍ $urface area = 6a² = 486cm²
◍ 6a² = 486cm²
◍ a² = 486 / 6
◍ a² = 81
◍ a = √81
◍ a = 9
◍ Hence a = 9cm
◍ Volume = a^3
◍ > 9^3 = 729cm^3
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