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Make four equilateral triangles (Posted on 2002-03-28) Difficulty: 2 of 5
An equilatteral triangle is a triangle in which all three sides have the same length. How can one arrange six equal-length match sticks so that the result contains four equilatteral triangles?

See The Solution Submitted by levik    
Rating: 2.6000 (10 votes)

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Solution Solution | Comment 6 of 10 |
Form an equilatteral triangle, then put a match from the middle of the bottom side to the middle of one of the other sides, use another match and put it the same way but with the other side, finally put a match parallel to the botom match but intersecting the upper vertex of the first triangle and at the same time touching the end points of the previous arranged two matches.

  Posted by Antonio on 2003-08-24 06:37:20
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