# Cube diagonals

Determine the volume and surface area of the cube if you know the length of the body diagonal u = 216 cm.

### 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
**solid geometry**- cube
- space diagonal
- surface area
**planimetrics**- Pythagorean theorem
- right triangle
- triangle

#### Units of physical quantities:

#### Grade of the word problem:

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