Cut Equilateral Triangles into Rectangles & Dudeney's Puzzle

[b](Updated 24 Dec 2012)[/b] To see how to dissect an equilateral triangle to a rectangle, and then investigate positions of the dissection points at which the rectangle becomes a square (the Dudeney's Puzzle).
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Anthony OR 柯志明 —

 
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dissect  dissection  dudeney  equilateral  equilateral-triangle  exploration  plane-figures  puzzle  puzzles  rectangle  square triangle triangles Više...
Ciljana skupina (godine)
11 – 14
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English (United Kingdom)
 
 

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