Tease your brain. (You Can Do It).

How many triangles can you find in this diagram diagram /di·a·gram/ (di´ah-gram) a graphic representation, in simplest form, of an object or concept, made up of lines and lacking pictorial elements. ?

[ILLUSTRATION OMITTED]

Can you remove 4 toothpicks to form 4 triangles?

[ILLUSTRATION OMITTED]

ANSWER

 1 triangle    36
 4 triangles   21
 9 triangles   11
16 triangles    6
25 triangles    3
36 triangles    1
total          78

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Publication:	Science World
Date:	Apr 8, 2002
Words:	43
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Topics:	Mathematical recreations Works

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