The cube has a wall area of 81 cm2. Calculate the length of its edge, wall, and solid diagonals.
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You need to know the following knowledge to solve this word math problem:
- expression of a variable from the formula
- square root
- square (second power, quadratic)
- solid geometry
- space diagonal
- surface area
- Pythagorean theorem
- right triangle
Units of physical quantities:
Grade of the word problem:
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