For a right-angled triangle, follow these steps to calculate the length of a side, \(x\), when another side and an angle Ɵ is given: Formula triangles ... be labelled as hypotenuse (\(h\)).

In an extraordinary achievement that has stunned the global mathematics community, two high school students from Louisiana ...

What it means is that in a right triangle (where one angle equals 90°), the sum of the squares of two sides equals the square of the hypotenuse (the longest side).