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Regular Tetrahedron 1234 (Posted on 2012-03-08) Difficulty: 3 of 5
A regular tetrahedron lies with its four vertices at respective distances from the origin as 1, 2, 3 and 4 units. What is the length of each edge of the tetrahedron?

No Solution Yet Submitted by K Sengupta    
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re(3): Is it possible? | Comment 4 of 8 |
(In reply to re(2): Is it possible? by Jer)

I agree now that I see that your intervals were derived from triangle inequalities.
  Posted by Bractals on 2012-03-08 18:22:18

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