All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Shapes
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    
No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)
re(2): Is it possible? | Comment 3 of 8 |
(In reply to re: Is it possible? by Bractals)

"For a regular tetrahedron all six edges must have the same length."

I used the fact that the six edges must have the same length.  I showed that the only length they can all have is 3.  Then I showed this cannot lead to a tetrahedron.
  Posted by Jer on 2012-03-08 16:45:41

Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information