Millimeter 24231
Calculate the length of the wall diagonal of a cube with a volume of 7, 40 square meters. Express the result to the nearest millimeter.
Correct answer:

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You need to know the following knowledge to solve this word math problem:
- algebra
- expression of a variable from the formula
- arithmetic
- cube root
- solid geometry
- cube
- planimetrics
- Pythagorean theorem
- right triangle
- square
- diagonal
Units of physical quantities:
Grade of the word problem:
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