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A sphere is inscribed in a cube. What is the ratio of the radius of the inscribed sphere to the edge of the cube?

 Sep 3, 2021
 #1
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If you draw it, the diameter of the sphere is equal to the edge of the cube.

 Sep 3, 2021
 #2
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Good observation, dmgp.  I hadn't thought of visualing it that way. 

Since the question asked for the ratio of the radius to the edge,

the ratio would be 1 to 2 because the radius is half the diameter.  

.

Guest Sep 3, 2021

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