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).

The student's discoveries were confirmed by the math community this week after their proofs were published in the American ...

Trigonometry is a branch of mathematics that lays out how the sides, lengths and angles in a triangle are related, and as such, the discipline often includes expressions of the Pythagorean theorem.

Pythagoras’ theorem is a statement that is ... which is always opposite the right angle. When labelling a length as the hypotenuse, it can be shortened to 𝒉. is equal to the sum of the ...

in which the square of the longest side (the hypotenuse) is equal to the squares of the two shorter sides added together. Many mathematicians over the years have explained why the theorem works ...