For centuries, students have learned that in a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides. Known as the Pythagorean Theorem, this ...

Add articles to your saved list and come back to them any time. For more than a century, an unassuming ancient Mesopotamian clay tablet depicting a land sale has been lying in plain sight in an ...

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 ...