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I need a ratio of a cube edge length compared to the length of a line drawn from any corner to an opposite corner.

 Apr 19, 2016
 #1
avatar+37146 
+5

If you are going to a truly opposite corner THROUGH the volume of a cube of side length 'x'    the distance will be

(sqrt(x^2 + x^2 + x^2) )

= sqrt (3x^2)

 

 

Then the ratio of an edge 'x' to this distance would be     x/(sqrt(3x^2)) = x/xsqrt3= 1/sqrt3 = sqrt3/3

 Apr 19, 2016
 #2
avatar+129852 
0

If we're drawing a diagonal on any face of the cube.......the length of this diagonal compared to the edge length [ call it, e]  is  √2* e

 

If we're drawing a diagonal from one vertex to another vertex, such that this diagonal passes through the center of the cube, the length of this diagonal compared to the edge length is  √3 * e

 

 

cool cool cool

 Apr 19, 2016

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