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 ...

The theorem’s history, however, is more complex than this legend would suggest. The use of the 3-4-5 triangle for constructing a right angle, for instance, goes back to much earlier times in ...

Math equations can feel like a banal abstraction without images to make sense of the strings ... When the triangle has a right angle, the square of the hypotenuse is always equal to the sum ...