perplexus.info :: Shapes : Make four equilateral triangles

Make four equilateral triangles (Posted on 2002-03-28)

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?

Submitted by levik

Rating: 2.6000 (10 votes)

Solution: (Hide)

The idea here is to not confine yourself to a flat surface. By building a pyramid out of the matches (3 matches for the base, and 3 more as the edges meeting at the top), you make the 4 triangles needed (One at the base, and three more are the faces of the pyramid).

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Puzzle Thoughts	K Sengupta	2023-02-22 07:47:21
Picture.	Jennifer	2004-09-26 16:55:47
re: another way?	Brian Smith	2003-10-27 10:51:08
another way?	melissa	2003-10-26 20:35:01
Solution	Antonio	2003-08-24 06:37:20
6 Triangles	nikki	2003-06-01 07:57:17
equilateral p	sach	2002-12-30 13:57:08
another way	Carey	2002-05-28 10:11:42
Re: Solution	levik	2002-05-08 20:27:11
Solution	Half-Mad	2002-05-07 22:34:00

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 (13)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info