In 1907, the English author and mathematician Henry Ernest Dudeney posed a puzzle: Can any equilateral triangle be cut into ...
We know that equilateral triangles have three sides that are the ... triangle XYZ and the coloured triangle both have the same height. So the base of the coloured triangle is 2 units.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback