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Volume and surface area

Volume is how much a shape can hold. Choose the shape and enter the measurements — the answer also comes in litres, so you can see how much water it can hold.

Your numbers

Figure
Unit

Answer

Volume

6,000cm³

Volume in litres

6l

Surface

2,200cm²

How to work it out

  1. 1V = l · b · h = 30 · 20 · 10 = 6,000 cm³
  2. 2O = 2 · (l·b + l·h + b·h) = 2 · (600 + 300 + 200) = 2,200 cm²

The formula

V = l · b · h

The base area times the height.

1 litre = 1 dm³ = 1,000 cm³. 1 m³ = 1,000 litres.

More: Geometry

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