# Volume and body diagonal

Calculate how much the volume and body diagonal of the cuboid decrease if we reduce each of its three edges, a, b, and c, by 18%.

### Correct answer:

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#### You need to know the following knowledge to solve this word math problem:

**arithmetic**- square (second power, quadratic)
- third power
**solid geometry**- cuboid
- space diagonal
**basic functions**- percentages

#### Units of physical quantities:

#### Grade of the word problem:

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