# Brainy

• Mar 16th 2009, 11:01 AM
u2_wa
Brainy
How will you make six triangles with six tooth pics?
• Mar 16th 2009, 02:48 PM
masters
Quote:

Originally Posted by u2_wa
How will you make six triangles with six tooth pics?

Hi u2_wa,

Construct a 'Star of David'

See attachment.
• Mar 16th 2009, 07:14 PM
ThePerfectHacker
Quote:

Originally Posted by u2_wa
How will you make six triangles with six tooth pics?

How do you make four triangles with six toothpics?
• Mar 16th 2009, 10:42 PM
CaptainBlack
Quote:

Originally Posted by ThePerfectHacker
How do you make four triangles with six toothpics?

Tetrahedron.

CB
• Mar 17th 2009, 12:42 AM
u2_wa
Now if I say how will you make six equilateral triangles with six tooth pics?
• Mar 17th 2009, 12:52 AM
CaptainBlack
Quote:

Originally Posted by u2_wa
Now if I say how will you make six equilateral triangles with six tooth pics?

Masters solution does this already (if done carefully)

CB
• Mar 17th 2009, 02:18 AM
u2_wa
Quote:

Originally Posted by ThePerfectHacker
How do you make four triangles with six toothpics?

To make four triangles, we should go into 3D.
Three triangles in space and one triangle in base
• Mar 17th 2009, 02:19 AM
Opalg
Quote:

Originally Posted by CaptainBlack
Masters solution does this already (if done carefully)

In fact it gives eight equilateral triangles if you count the two big ones.
• Mar 17th 2009, 04:14 AM
CaptainBlack
Quote:

Originally Posted by Opalg
In fact it gives eight equilateral triangles if you count the two big ones.

If you move one of masters big triangles down so that a vertex falls on the side of the other you end up with exactly six equilateral triangles (including the two big ones).

CB