Find the volume of a cube whose surface area is 486 cm square
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the question was very easy..
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Hi,
Here is your answer,
We know that,
Surface area of cube = 6a²
→ 6a² = 486
So, → a² = 486/6
→ a² = 81
→ a = √81
∴ a = 9
Now,
Volume of a cube = a³
= 9 × 9 × 9
= 729 cm³
Here is your answer,
We know that,
Surface area of cube = 6a²
→ 6a² = 486
So, → a² = 486/6
→ a² = 81
→ a = √81
∴ a = 9
Now,
Volume of a cube = a³
= 9 × 9 × 9
= 729 cm³
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