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 A Tetrahedron (Posted on 2014-01-30)
You are given six sticks of integral lengths 1, 2, 3, 4, 5 and 6. Using these sticks, can you make a tetrahedron (4-sided, 3-D figure, with a triangle on each side)?

If so, show how. If not, replace any one of the sticks with the smallest stick of integral length greater than 6 that allows you to build such a tetrahedron and show how it can be done.

 No Solution Yet Submitted by Danish Ahmed Khan Rating: 3.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
 re(2): Multiple ways (spoiler) | Comment 3 of 4 |
(In reply to re: Multiple ways (spoiler) by Jer)

Thanks, Jer.  Excellent point, and I stand corrected.  Do you need to check all spans, or only the longest?  I haven't thought this through.

This makes the problem more than a Difficulty 2, I think.

Edited on January 30, 2014, 1:11 pm
 Posted by Steve Herman on 2014-01-30 11:53:08

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