<PRE><B>Question 760860</B>
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If the edges are not equal length, then it is not a cube.  If the diagonal is across a face of your rectangular prism, then use the dimensions of that face as the legs of a right triangle and the Pythagorean theorem to calculate the hypotenuse of the triangle which is the diagonal that you need.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
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My calculator said it, I believe it, that settles it
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