Pythagoras' theorem describes the relationship between the three sides of a right-angled triangle. It is incredibly useful for engineering and construction and was used by humans centuries before ...

Pythagoras’ theorem (that the square of the longest side of a right-angled triangle equals the square of the other two sides) predates Pythagoras himself by at least a thousand years.

Two high school seniors have presented their proof of the Pythagorean theorem using trigonometry — which mathematicians thought to be impossible — at an American Mathematical Society meeting.

In a new peer-reviewed study, Ne'Kiya Jackson and Calcea Johnson outlined 10 ways to solve the Pythagorean theorem using trigonometry, including a proof they discovered in high school.

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