Presumably no curves at all.
A cube has 12 edges. I don't know what you mean by "curves edges".
3 curves
There are four curves in the spine. They are the Cervical, Thoracic, Lumbar and Pelvic curves.
there are 3 curves
It has 1 syllable.
If a person thinks they have too many curves, they can reduce them by exercising. Eating healthy and less calories can also help get rid of curves.
A square has 4 curves: 4 equal sides.
2
None.
Answer
The answer depends on the size of the cube.
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