Using Pythagoras theorem: a² + b² = c²

Tue, 05 May 2026 19:20:21 +0000

# Using the Pythagorean Theorem: a² + b² = c² Explained The Pythagorean theorem—often remembered as a² + b² = c²—is one of the most fundamental principles in geometry. Named after the ancient Greek mathematician Pythagoras, this theorem forms the foundation for understanding right triangles and has wide-ranging applications in mathematics, engineering, architecture, art, and even everyday problem solving. Whether you're a student, a teacher, or simply curious about geometry, mastering this formula is essential for any journey in math. ## What is the Pythagorean Theorem? The Pythagorean theorem states that in any right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle)—denoted as c—is equal to the sum of the squares of the other two sides, called legs, a and b.