It involves just six matches, but this puzzle is anything but easy to solve. The Growing Triangles puzzle asks users to transform two triangles made from six matches into four triangles, by moving ...

Interior angles in a triangle add up to 180˚. Triangles close triangleA polygon with three straight sides. have three sides, therefore they have three angles. Interior angles in a triangle sum to a ...

If you think you’re a whizz at cryptic puzzles, take a butcher’s at the one above. Doing the rounds of the internet again, this puzzle from Quora involves you calculating how many triangles are ...

The sides of right-angled triangles are labelled opposite, hypotenuse and adjacent. Trigonometry explores the relationship between sides and angles in right-angled triangles. The hypotenuse is the ...