Pythagoras’ theorem is a statement that ... hypotenuse close hypotenuseThe longest side of a right-angled triangle, which is always opposite the right angle. When labelling a length as the ...

The theorem is a fundamental law in the field of trigonometry, which essentially calculates the relationships between sides ...

Mathematicians had long thought that using trigonometry to prove the theorem was unworkable ... of mathematics that lays out ...

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).