Researchers have demonstrated, using a novel approach, that the original solution to Dudeney’s famous dissection problem is indeed the optimal one. In 1907, English author and mathematician Henry Erne ...

A Japan-U.S. research team on March 10 offered a mathematical proof that "Dudeney's dissection," a challenge to cut an ...

Henry Ernest Dudeney posed the famous dissection problem of transforming a triangle into a square by cutting it into as few ...

Late on Thursday night and into the early hours of Friday, the full moon turned a beautiful reddish color as it drifted ...

And as darkness falls this week, we have what many refer to as the "Winter Triangle" dominating the southeast sky. This large, nearly equilateral triangle is composed of three of the brightest ...

225 + 135 = 360 The sum of interior angles in a triangle is 180˚. In an equilateral triangle, all three angles are equal to 60˚. To find the missing angles in an equilateral triangle ...

I know I am. Another wonderful “accidental” alignment of stars is the Winter Triangle. It’s a perfect equilateral triangle made up of three bright stars from three separate constellations.

In 1907, the English author and mathematician Henry Ernest Dudeney posed a puzzle: Can any equilateral triangle be cut into as few pieces as possible that will fit together to form a perfect square?