Once a century, a very special day comes along. That day is today — 9/16/25. Pi Day (3/14) often comes with sweet treats; Square Root Day (4/4/16 or 5/5/25, for example) has a certain numerical rhyme.

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 ...

This is an updated version of a story first published on May 5, 2024. For many high school students returning to class, it may seem like geometry and trigonometry were created by the Greeks as a form ...

The Pythagorean theorem, a cornerstone of mathematics for millennia, provides a method for determining unknown sides in right-angled triangles using the formula a² + b² = c². Its applications extend ...

What do patterns, puzzles, and art have in common? Expand your horizons and see the connections. You’re using math and don’t even know it. Unlock the beauty of mathematics at WonderLab’s Pythagorean ...

The Pythagorean Theorem, a cornerstone of geometry, empowers students to solve right triangle problems and unlock advanced mathematical concepts. Mastering this theorem enhances logical reasoning, ...

A University of Tartu student has come up with a new proof of the Pythagorean theorem using origami. While folding paper is already used — even in basic school — to demonstrate the well-known ...

The Pythagorean theorem has never been easier to understand! Learn how to use it to solve any right triangle with clear examples and step-by-step explanations. Perfect for revision, exams, and math ...

Discusses the properties and types of triangles, explaining that a triangle is a closed figure with three sides and angles. It categorizes triangles into equilateral, isosceles, scalene, obtuse, right ...

Two teenagers made significant strides in Mathematics after proving the Pythagorean Theorem with trigonometry. Even better, the US youths provided nine solutions after presenting their previous one, ...

All right. It's time now for our science news roundup from Short Wave, NPR's science podcast. I'm joined by the show's dynamic duo, Regina Barber and Emily Kwong. Hey, ladies. REGINA BARBER, BYLINE: ...